Question:
Who was the chair of British Ornithologists' Club in Jan, 1951?

Context:
 Stanley Smyth Flower is the chair of British Ornithologists' Club from Jan, 1930 to Jan, 1932. 
 Arthur Landsborough Thomson is the chair of British Ornithologists' Club from Jan, 1938 to Jan, 1943. 
 Harry Forbes Witherby is the chair of British Ornithologists' Club from Jan, 1924 to Jan, 1927. 
 Philip Sclater is the chair of British Ornithologists' Club from Jan, 1892 to Jan, 1913. 
 Michael Casement is the chair of British Ornithologists' Club from Jan, 2005 to Jan, 2009. 
 Tom Gladwin is the chair of British Ornithologists' Club from Jan, 1997 to Jan, 2001. 
 William Lutley Sclater is the chair of British Ornithologists' Club from Jan, 1918 to Jan, 1924. 
 Clive F. Mann is the chair of British Ornithologists' Club from Jan, 2001 to Jan, 2005. 
 Cyril Mackworth-Praed is the chair of British Ornithologists' Club from Jan, 1956 to Jan, 1959. 
 Geoffrey K. McCulloch is the chair of British Ornithologists' Club from Jan, 1986 to Jan, 1989. 
 P. Hogg is the chair of British Ornithologists' Club from Jan, 1977 to Jan, 1980. 
 R. S. R. Fitter is the chair of British Ornithologists' Club from Jan, 1965 to Jan, 1968. 
 R.E.F. PEAL is the chair of British Ornithologists' Club from Jan, 1989 to Jan, 1993. 
 David Armitage Bannerman is the chair of British Ornithologists' Club from Jan, 1932 to Jan, 1935. 
 James Maurice Harrison is the chair of British Ornithologists' Club from Jan, 1946 to Jan, 1950. 
 D. GRIFFIN is the chair of British Ornithologists' Club from Jan, 1993 to Jan, 1997. 
 Charles Robert Senhouse Pitman is the chair of British Ornithologists' Club from Jan, 1959 to Jan, 1962. 
 Walter Rothschild, 2nd Baron Rothschild is the chair of British Ornithologists' Club from Jan, 1913 to Jan, 1918. 
 Percy Lowe is the chair of British Ornithologists' Club from Jan, 1927 to Jan, 1930. 
 Helen Baker is the chair of British Ornithologists' Club from Jan, 2009 to Jan, 2013. 
 James F. Monk is the chair of British Ornithologists' Club from Jan, 1968 to Jan, 1971. 
 Philip Manson-Bahr is the chair of British Ornithologists' Club from Jan, 1950 to Jan, 1953. 
 John Hamel Elgood is the chair of British Ornithologists' Club from Jan, 1974 to Jan, 1977. 
 David Seth-Smith is the chair of British Ornithologists' Club from Jan, 1943 to Jan, 1946. 
 Sir Hugh Elliott, 3rd Baronet is the chair of British Ornithologists' Club from Jan, 1971 to Jan, 1974. 
 Gregory Mathews is the chair of British Ornithologists' Club from Jan, 1935 to Jan, 1938. 
 Richard Meinertzhagen is the chair of British Ornithologists' Club from Jan, 1953 to Jan, 1956. 
 D.R. CALDER is the chair of British Ornithologists' Club from Jan, 1980 to Jan, 1983.

Answer:
Question:
Who was the chair of British Ornithologists' Club in Jan, 1951?

Context:
 Stanley Smyth Flower is the chair of British Ornithologists' Club from Jan, 1930 to Jan, 1932. 
 Arthur Landsborough Thomson is the chair of British Ornithologists' Club from Jan, 1938 to Jan, 1943. 
 Harry Forbes Witherby is the chair of British Ornithologists' Club from Jan, 1924 to Jan, 1927. 
 Philip Sclater is the chair of British Ornithologists' Club from Jan, 1892 to Jan, 1913. 
 Michael Casement is the chair of British Ornithologists' Club from Jan, 2005 to Jan, 2009. 
 Tom Gladwin is the chair of British Ornithologists' Club from Jan, 1997 to Jan, 2001. 
 William Lutley Sclater is the chair of British Ornithologists' Club from Jan, 1918 to Jan, 1924. 
 Clive F. Mann is the chair of British Ornithologists' Club from Jan, 2001 to Jan, 2005. 
 Cyril Mackworth-Praed is the chair of British Ornithologists' Club from Jan, 1956 to Jan, 1959. 
 Geoffrey K. McCulloch is the chair of British Ornithologists' Club from Jan, 1986 to Jan, 1989. 
 P. Hogg is the chair of British Ornithologists' Club from Jan, 1977 to Jan, 1980. 
 R. S. R. Fitter is the chair of British Ornithologists' Club from Jan, 1965 to Jan, 1968. 
 R.E.F. PEAL is the chair of British Ornithologists' Club from Jan, 1989 to Jan, 1993. 
 David Armitage Bannerman is the chair of British Ornithologists' Club from Jan, 1932 to Jan, 1935. 
 James Maurice Harrison is the chair of British Ornithologists' Club from Jan, 1946 to Jan, 1950. 
 D. GRIFFIN is the chair of British Ornithologists' Club from Jan, 1993 to Jan, 1997. 
 Charles Robert Senhouse Pitman is the chair of British Ornithologists' Club from Jan, 1959 to Jan, 1962. 
 Walter Rothschild, 2nd Baron Rothschild is the chair of British Ornithologists' Club from Jan, 1913 to Jan, 1918. 
 Percy Lowe is the chair of British Ornithologists' Club from Jan, 1927 to Jan, 1930. 
 Helen Baker is the chair of British Ornithologists' Club from Jan, 2009 to Jan, 2013. 
 James F. Monk is the chair of British Ornithologists' Club from Jan, 1968 to Jan, 1971. 
 Philip Manson-Bahr is the chair of British Ornithologists' Club from Jan, 1950 to Jan, 1953. 
 John Hamel Elgood is the chair of British Ornithologists' Club from Jan, 1974 to Jan, 1977. 
 David Seth-Smith is the chair of British Ornithologists' Club from Jan, 1943 to Jan, 1946. 
 Sir Hugh Elliott, 3rd Baronet is the chair of British Ornithologists' Club from Jan, 1971 to Jan, 1974. 
 Gregory Mathews is the chair of British Ornithologists' Club from Jan, 1935 to Jan, 1938. 
 Richard Meinertzhagen is the chair of British Ornithologists' Club from Jan, 1953 to Jan, 1956. 
 D.R. CALDER is the chair of British Ornithologists' Club from Jan, 1980 to Jan, 1983.

Answer:
user
Philip Manson-Bahr
assistant
Question:
Who was the chair of British Ornithologists' Club in Jan, 1951?

Context:
 Stanley Smyth Flower is the chair of British Ornithologists' Club from Jan, 1930 to Jan, 1932. 
 Arthur Landsborough Thomson is the chair of British Ornithologists' Club from Jan, 1938 to Jan, 1943. 
 Harry Forbes Witherby is the chair of British Ornithologists' Club from Jan, 1924 to Jan, 1927. 
 Philip Sclater is the chair of British Ornithologists' Club from Jan, 1892 to Jan, 1913. 
 Michael Casement is the chair of British Ornithologists' Club from Jan, 2005 to Jan, 2009. 
 Tom Gladwin is the chair of British Ornithologists' Club from Jan, 1997 to Jan, 2001. 
 William Lutley Sclater is the chair of British Ornithologists' Club from Jan, 1918 to Jan, 1924. 
 Clive F. Mann is the chair of British Ornithologists' Club from Jan, 2001 to Jan, 2005. 
 Cyril Mackworth-Praed is the chair of British Ornithologists' Club from Jan, 1956 to Jan, 1959. 
 Geoffrey K. McCulloch is the chair of British Ornithologists' Club from Jan, 1986 to Jan, 1989. 
 P. Hogg is the chair of British Ornithologists' Club from Jan, 1977 to Jan, 1980. 
 R. S. R. Fitter is the chair of British Ornithologists' Club from Jan, 1965 to Jan, 1968. 
 R.E.F. PEAL is the chair of British Ornithologists' Club from Jan, 1989 to Jan, 1993. 
 David Armitage Bannerman is the chair of British Ornithologists' Club from Jan, 1932 to Jan, 1935. 
 James Maurice Harrison is the chair of British Ornithologists' Club from Jan, 1946 to Jan, 1950. 
 D. GRIFFIN is the chair of British Ornithologists' Club from Jan, 1993 to Jan, 1997. 
 Charles Robert Senhouse Pitman is the chair of British Ornithologists' Club from Jan, 1959 to Jan, 1962. 
 Walter Rothschild, 2nd Baron Rothschild is the chair of British Ornithologists' Club from Jan, 1913 to Jan, 1918. 
 Percy Lowe is the chair of British Ornithologists' Club from Jan, 1927 to Jan, 1930. 
 Helen Baker is the chair of British Ornithologists' Club from Jan, 2009 to Jan, 2013. 
 James F. Monk is the chair of British Ornithologists' Club from Jan, 1968 to Jan, 1971. 
 Philip Manson-Bahr is the chair of British Ornithologists' Club from Jan, 1950 to Jan, 1953. 
 John Hamel Elgood is the chair of British Ornithologists' Club from Jan, 1974 to Jan, 1977. 
 David Seth-Smith is the chair of British Ornithologists' Club from Jan, 1943 to Jan, 1946. 
 Sir Hugh Elliott, 3rd Baronet is the chair of British Ornithologists' Club from Jan, 1971 to Jan, 1974. 
 Gregory Mathews is the chair of British Ornithologists' Club from Jan, 1935 to Jan, 1938. 
 Richard Meinertzhagen is the chair of British Ornithologists' Club from Jan, 1953 to Jan, 1956. 
 D.R. CALDER is the chair of British Ornithologists' Club from Jan, 1980 to Jan, 1983.

Answer:
user
Stanley Smyth Flower
Michael Casement
Sir Hugh Elliott, 3rd Baronet
William Lutley Sclater
Helen Baker
Richard Meinertzhagen
R. S. R. Fitter
John Hamel Elgood
Charles Robert Senhouse Pitman
R.E.F. PEAL
David Armitage Bannerman
James F. Monk
D.R. CALDER
Cyril Mackworth-Praed
Clive F. Mann
D. GRIFFIN
P. Hogg
Harry Forbes Witherby
David Seth-Smith
Arthur Landsborough Thomson
Percy Lowe
Walter Rothschild, 2nd Baron Rothschild
Gregory Mathews
Philip Sclater
Tom Gladwin
James Maurice Harrison
Geoffrey K. McCulloch
assistant
Question:
Who was the chair of British Ornithologists' Club in Jan, 1951?

Context:
 Stanley Smyth Flower is the chair of British Ornithologists' Club from Jan, 1930 to Jan, 1932. 
 Arthur Landsborough Thomson is the chair of British Ornithologists' Club from Jan, 1938 to Jan, 1943. 
 Harry Forbes Witherby is the chair of British Ornithologists' Club from Jan, 1924 to Jan, 1927. 
 Philip Sclater is the chair of British Ornithologists' Club from Jan, 1892 to Jan, 1913. 
 Michael Casement is the chair of British Ornithologists' Club from Jan, 2005 to Jan, 2009. 
 Tom Gladwin is the chair of British Ornithologists' Club from Jan, 1997 to Jan, 2001. 
 William Lutley Sclater is the chair of British Ornithologists' Club from Jan, 1918 to Jan, 1924. 
 Clive F. Mann is the chair of British Ornithologists' Club from Jan, 2001 to Jan, 2005. 
 Cyril Mackworth-Praed is the chair of British Ornithologists' Club from Jan, 1956 to Jan, 1959. 
 Geoffrey K. McCulloch is the chair of British Ornithologists' Club from Jan, 1986 to Jan, 1989. 
 P. Hogg is the chair of British Ornithologists' Club from Jan, 1977 to Jan, 1980. 
 R. S. R. Fitter is the chair of British Ornithologists' Club from Jan, 1965 to Jan, 1968. 
 R.E.F. PEAL is the chair of British Ornithologists' Club from Jan, 1989 to Jan, 1993. 
 David Armitage Bannerman is the chair of British Ornithologists' Club from Jan, 1932 to Jan, 1935. 
 James Maurice Harrison is the chair of British Ornithologists' Club from Jan, 1946 to Jan, 1950. 
 D. GRIFFIN is the chair of British Ornithologists' Club from Jan, 1993 to Jan, 1997. 
 Charles Robert Senhouse Pitman is the chair of British Ornithologists' Club from Jan, 1959 to Jan, 1962. 
 Walter Rothschild, 2nd Baron Rothschild is the chair of British Ornithologists' Club from Jan, 1913 to Jan, 1918. 
 Percy Lowe is the chair of British Ornithologists' Club from Jan, 1927 to Jan, 1930. 
 Helen Baker is the chair of British Ornithologists' Club from Jan, 2009 to Jan, 2013. 
 James F. Monk is the chair of British Ornithologists' Club from Jan, 1968 to Jan, 1971. 
 Philip Manson-Bahr is the chair of British Ornithologists' Club from Jan, 1950 to Jan, 1953. 
 John Hamel Elgood is the chair of British Ornithologists' Club from Jan, 1974 to Jan, 1977. 
 David Seth-Smith is the chair of British Ornithologists' Club from Jan, 1943 to Jan, 1946. 
 Sir Hugh Elliott, 3rd Baronet is the chair of British Ornithologists' Club from Jan, 1971 to Jan, 1974. 
 Gregory Mathews is the chair of British Ornithologists' Club from Jan, 1935 to Jan, 1938. 
 Richard Meinertzhagen is the chair of British Ornithologists' Club from Jan, 1953 to Jan, 1956. 
 D.R. CALDER is the chair of British Ornithologists' Club from Jan, 1980 to Jan, 1983.

Answer:
user
Philip Manson-Bahr
assistant