[Q]: Sentence: Within the family, he was known informally as "Bertie". Question: What was Prince Albert's nickname?
++++++++++
[A]: yes

[Q]: Sentence: The development of synthetic chemical methods allowed scientists to systematically vary the structure of chemical substances, and growth in the emerging science of pharmacology expanded their ability to evaluate the biological effects of these structural changes. Question: Who is responsible for purification of compounds found in mineral sources?
++++++++++
[A]: no

[Q]: Sentence: Scheiner's system rated the speed of a plate by the least exposure to produce a visible darkening upon development. Question: Who created the Scheinergrade system?
++++++++++
[A]:
no