question: OPTIONS:
- yes
- no
BBC Television is a service of the British Broadcasting Corporation.
What is the acronym for British Broadcasting Corporation?

answer: yes

[Q]: Sentence: In 1974, the unmanned AstroFlight Sunrise plane made the first solar flight. Question: When was the first solar powered manned flight made? OPTIONS:
- yes
- no
++++++++++
[A]: no

Q: Does "In 2008, Yale purchased the 136-acre (0.55 km2) former Bayer Pharmaceutical campus in West Haven, Connecticut, the buildings of which are now used as laboratory and research space." provide a valid answer to "How many forests does Yale own?"?
OPTIONS:
- yes
- no
A: no

Problem: Does "In February 1975, Margaret Thatcher was elected leader of the British Conservative Party." answer the question "What political party was Margaret Thatcher the head of in 1975?" OPTIONS:
- yes
- no

A: yes

Does the sentence "Aside from the official forms of their respective languages, the four linguistic regions of Switzerland also have their local dialectal forms." provide a valid answer to the question "How many linguistic regions of Switzerland have their own form of local dialect?" OPTIONS:
- yes
- no

A: yes

Does the sentence "Darwin discusses contemporary opinions on the origins of different breeds under cultivation to argue that many have been produced from common ancestors by selective breeding." provide a valid answer to the question "Which evolutionary changes were the most important to Darwin?" OPTIONS:
- yes
- no

A:
no