question: OPTIONS:
- yes
- no
For example, each year more water is diverted from rivers for snowmaking in the ski resorts, the effect of which is yet unknown.
Water is diverted from rivers for what purpose?

answer: yes


[Q]: Sentence: That distinction goes to the Harwell CADET of 1955, built by the electronics division of the Atomic Energy Research Establishment at Harwell. Question: Who built the Harwell CADET? OPTIONS:
- yes
- no
++++++++++
[A]: yes


Q: Does "It has been called one of the great speeches of history:" provide a valid answer to "After what possible event would the speech called one of the greatest in history have been delivered?"?
OPTIONS:
- yes
- no
A: no


Problem: Does "1956 Soviet film Behind Store Window (За витриной универмага) on YouTube depicts operation of a Moscow department store in 1950's." answer the question "When was the movie depicting soviet department stores filmed?" OPTIONS:
- yes
- no

A: yes


Does the sentence "On an 1829 return trip to Berlin, he was a guest of Prince Antoni Radziwiłł, governor of the Grand Duchy of Posen—himself an accomplished composer and aspiring cellist." provide a valid answer to the question "With whom did Chopin go to Berlin?" OPTIONS:
- yes
- no

A: no


Does the sentence "In September 1216 John began a fresh, vigorous attack." provide a valid answer to the question "When did John begin a fresh, vigorous attack?" OPTIONS:
- yes
- no

A:
yes