[Q]: Sentence: Further splits took place, especially over theological issues, but most Presbyterians in Scotland were reunited by 1929 union of the established Church of Scotland and the United Free Church of Scotland. Question: What year were most Presbyterians in Scotland reunited?
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[A]: yes

[Q]: Sentence: No electricity distribution had been developed at the time. Question: What necessary technical development had yet to occur to make electric motors useful?
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[A]: yes

[Q]: Sentence: If a party has materially violated or breached its treaty obligations, the other parties may invoke this breach as grounds for temporarily suspending their obligations to that party under the treaty. Question: What may be invoked as grounds for permanently terminating a treaty?
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[A]:
no