[Q]: Sentence: This raid was significant, as 63 German fighters were sent with the bombers, indicating the growing effectiveness of RAF night fighter defences. Question: What showed RAF night fighter effectiveness was increasing?
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[A]: yes

[Q]: Sentence: Numerous modern mandolin makers build instruments that largely replicate the Gibson F-5 Artist models built in the early 1920s under the supervision of Gibson acoustician Lloyd Loar. Question: When was the Gibson F-5 largely replicated?
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[A]: yes

[Q]: Sentence: Wang and Nyima argue that the Ming emperor sent edicts to Tibet twice in the second year of the Ming dynasty, and demonstrated that he viewed Tibet as a significant region to pacify by urging various Tibetan tribes to submit to the authority of the Ming court. Question: Who believed that the Ming court had full sovereignty over Tibet?
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[A]:
yes