question: OPTIONS:
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The most common types of solar water heaters are evacuated tube collectors (44%) and glazed flat plate collectors (34%) generally used for domestic hot water; and unglazed plastic collectors (21%) used mainly to heat swimming pools.
What type of solar water heater is used to heat pools?

answer: yes

[Q]: Sentence: It is among the longest surviving city walls in China. Question: Who was the first emperor of the Ming dynasty? OPTIONS:
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++++++++++
[A]: no

Q: Does "In 2006, Premiere listed him as the most powerful and influential figure in the motion picture industry." provide a valid answer to "In which Olympics was Spielberg a flagbearer?"?
OPTIONS:
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A: no

Problem: Does "Around 1943 the USA began to use the technology on a large scale to make proximity fuses for use in World War II." answer the question "Who was working on the same type of large-scale application of printed circuits as the U.S. in Britain in the mid-1950s?" OPTIONS:
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A: no

Does the sentence "Strasbourg also offers high-class eclecticist buildings in its very extended German district, the Neustadt, being the main memory of Wilhelmian architecture since most of the major cities in Germany proper suffered intensive damage during World War II." provide a valid answer to the question "What kind of high class building does Strasbourg offer?" OPTIONS:
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A: yes

Does the sentence "He concluded that the space shuttle reliability estimate by NASA management was fantastically unrealistic, and he was particularly angered that NASA used these figures to recruit Christa McAuliffe into the Teacher-in-Space program." provide a valid answer to the question "Who did NASA recruit by using flawed safety numbers?" OPTIONS:
- yes
- no

A:
yes