Question:
Who was the owner of Portrait of an Old Lady, Possibly Elisabeth Bas in Jun, 1878?

Context:
 Portrait of an Old Lady, Possibly Elisabeth Bas is owned by Jacobus Salomon Hendrik van de Poll from Jan, 1878 to Jan, 1880. 
 Portrait of an Old Lady, Possibly Elisabeth Bas is owned by Anna Maria Muilman from Jan, 1849 to Jan, 1878. 
 Portrait of an Old Lady, Possibly Elisabeth Bas is owned by Willem Mogge Muilman from Jan, 1812 to Jan, 1849.

Answer:
Question:
Who was the owner of Portrait of an Old Lady, Possibly Elisabeth Bas in Jun, 1878?

Context:
 Portrait of an Old Lady, Possibly Elisabeth Bas is owned by Jacobus Salomon Hendrik van de Poll from Jan, 1878 to Jan, 1880. 
 Portrait of an Old Lady, Possibly Elisabeth Bas is owned by Anna Maria Muilman from Jan, 1849 to Jan, 1878. 
 Portrait of an Old Lady, Possibly Elisabeth Bas is owned by Willem Mogge Muilman from Jan, 1812 to Jan, 1849.

Answer:
user
Jacobus Salomon Hendrik van de Poll
assistant
Question:
Who was the owner of Portrait of an Old Lady, Possibly Elisabeth Bas in Jun, 1878?

Context:
 Portrait of an Old Lady, Possibly Elisabeth Bas is owned by Jacobus Salomon Hendrik van de Poll from Jan, 1878 to Jan, 1880. 
 Portrait of an Old Lady, Possibly Elisabeth Bas is owned by Anna Maria Muilman from Jan, 1849 to Jan, 1878. 
 Portrait of an Old Lady, Possibly Elisabeth Bas is owned by Willem Mogge Muilman from Jan, 1812 to Jan, 1849.

Answer:
user
Willem Mogge Muilman
Anna Maria Muilman
assistant
Question:
Who was the owner of Portrait of an Old Lady, Possibly Elisabeth Bas in Jun, 1878?

Context:
 Portrait of an Old Lady, Possibly Elisabeth Bas is owned by Jacobus Salomon Hendrik van de Poll from Jan, 1878 to Jan, 1880. 
 Portrait of an Old Lady, Possibly Elisabeth Bas is owned by Anna Maria Muilman from Jan, 1849 to Jan, 1878. 
 Portrait of an Old Lady, Possibly Elisabeth Bas is owned by Willem Mogge Muilman from Jan, 1812 to Jan, 1849.

Answer:
user
Jacobus Salomon Hendrik van de Poll
assistant