Question:
Which position did Charles Woodruff Yost hold in Sep, 1970?

Context:
 Charles Woodruff Yost holds the position of United States Ambassador to Syria from Jan, 1957 to Jan, 1958. 
 Charles Woodruff Yost holds the position of United States Ambassador to Laos from Jan, 1955 to Jan, 1956. 
 Charles Woodruff Yost holds the position of United States Ambassador to the United Nations from Jan, 1969 to Feb, 1971. 
 Charles Woodruff Yost holds the position of United States Ambassador to Morocco from Jan, 1958 to Jan, 1961.

Answer:
Question:
Which position did Charles Woodruff Yost hold in Sep, 1970?

Context:
 Charles Woodruff Yost holds the position of United States Ambassador to Syria from Jan, 1957 to Jan, 1958. 
 Charles Woodruff Yost holds the position of United States Ambassador to Laos from Jan, 1955 to Jan, 1956. 
 Charles Woodruff Yost holds the position of United States Ambassador to the United Nations from Jan, 1969 to Feb, 1971. 
 Charles Woodruff Yost holds the position of United States Ambassador to Morocco from Jan, 1958 to Jan, 1961.

Answer:
user
United States Ambassador to the United Nations
assistant
Question:
Which position did Charles Woodruff Yost hold in Sep, 1970?

Context:
 Charles Woodruff Yost holds the position of United States Ambassador to Syria from Jan, 1957 to Jan, 1958. 
 Charles Woodruff Yost holds the position of United States Ambassador to Laos from Jan, 1955 to Jan, 1956. 
 Charles Woodruff Yost holds the position of United States Ambassador to the United Nations from Jan, 1969 to Feb, 1971. 
 Charles Woodruff Yost holds the position of United States Ambassador to Morocco from Jan, 1958 to Jan, 1961.

Answer:
user
United States Ambassador to Laos
United States Ambassador to Syria
United States Ambassador to Morocco
assistant
Question:
Which position did Charles Woodruff Yost hold in Sep, 1970?

Context:
 Charles Woodruff Yost holds the position of United States Ambassador to Syria from Jan, 1957 to Jan, 1958. 
 Charles Woodruff Yost holds the position of United States Ambassador to Laos from Jan, 1955 to Jan, 1956. 
 Charles Woodruff Yost holds the position of United States Ambassador to the United Nations from Jan, 1969 to Feb, 1971. 
 Charles Woodruff Yost holds the position of United States Ambassador to Morocco from Jan, 1958 to Jan, 1961.

Answer:
user
United States Ambassador to the United Nations
assistant