[Q]: Sentence: The Han dynasty (Chinese: ; pinyin: Han chao) was the second imperial dynasty of China, preceded by the Qin dynasty (221207 BC) and succeeded by the Three Kingdoms period (220280 AD). Question: What dynasty came before the Han dynasty? OPTIONS:
- yes
- no
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[A]: yes

Q: Does "The hot object in equilibrium with light absorbs just as much light as it emits." provide a valid answer to "If an object is black, what is known about its thermal light emission?"?
OPTIONS:
- yes
- no
A: no

Problem: Does "To the south and east of it is the Democratic Republic of Congo." answer the question "Which country lies southwest of the Congo?" OPTIONS:
- yes
- no

A: no

Does the sentence "The Rodeo Parade is a popular event as most schools give two rodeo days off instead of Presidents Day." provide a valid answer to the question "How much time do Tucson schools give students off to attend the Fiesta de los Vaqueros?" OPTIONS:
- yes
- no

A: yes

Question:
Choose your answer: Is "It was believed that the three realms of Heaven, Earth, and Mankind were linked by natural cycles of yin and yang and the five phases." a good answer to the question "How many realms were commonly thought of as being linked by a natural cycle?" OPTIONS:
- yes
- no
Answer:
yes

[Q]: Sentence: Thereafter, research into the partial vacuum lapsed until 1850 when August Toepler invented the Toepler Pump and Heinrich Geissler invented the mercury displacement pump in 1855, achieving a partial vacuum of about 10 Pa (0.1 Torr). Question: What year was the Toepler Pump invented? OPTIONS:
- yes
- no
++++++++++
[A]:
yes