[Q]: Sentence: For this reason, copper is usually supplied in a fine-grained polycrystalline form, which has greater strength than monocrystalline forms. Question: What is a weaker form of copper than fine-grained polycrystalline? OPTIONS:
- yes
- no
++++++++++
[A]: yes

[Q]: Sentence: Quanzhou traders began travelling southwards to Xiamen to carry on their businesses while Zhangzhou peasants began traveling northwards to Xiamen in search of job opportunities. Question: Why did peasants from Zhangzhou travel north to Xiamen? OPTIONS:
- yes
- no
++++++++++
[A]: yes

[Q]: Sentence: On average the price per square metre in central London is 24,252 (April 2014). Question: What is the average property price per square meter in Berlin as of April 2014? OPTIONS:
- yes
- no
++++++++++
[A]:
no