[Q]: Sentence: Serbo-Croatian was standardized in the mid-19th-century Vienna Literary Agreement by Croatian and Serbian writers and philologists, decades before a Yugoslav state was established. Question: What was Serbo-Croatian the official language for in the 20th century?
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[A]: no

[Q]: Sentence: Pantheism holds that God is the universe and the universe is God, whereas Panentheism holds that God contains, but is not identical to, the Universe. Question: What is Pantheism?
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[A]: yes

[Q]: Sentence: Sometimes this is made clearer by calling it an "optional protocol", especially where many parties to the first agreement do not support the protocol. Question: What is a treaty that supplements a previous treaty in international law?
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[A]:
no