[Q]: Sentence: Zinc metal was not produced on a large scale until the 12th century in India and was unknown to Europe until the end of the 16th century. Question: When was brass first used? OPTIONS:
- yes
- no
++++++++++
[A]: no

[Q]: Sentence: They settled in Zhangzhou and brought the Middle Chinese phonology of northern China during the 7th century into Zhangzhou; In 885, (during the reign of Emperor Xizong of Tang), the two brothers Wang Chao () and Wang Shenzhi (), led a military expedition force to pacify the Huang Chao rebellion. Question: What is the name of the son of Chen Zheng? OPTIONS:
- yes
- no
++++++++++
[A]: no

[Q]: Sentence: There were no maneuvering rockets on the Vostok to permit space rendezvous, required to keep two spacecraft a controlled distance apart. Question: What first person from the USSR controlled their own spacecraft? OPTIONS:
- yes
- no
++++++++++
[A]:
no