instruction:
Given a sentence, fill out the missing word with a 'no' or a number (between zero and ten). You should write the numbers with english alphabet, like: four instead of 4.
question:
Most insects have one or ____ pairs of wings.
answer:
two

question:
Rifts develop from separate domes creating ____ legged rift faults that join each other.
answer:
three

question:
Most male birds have ____ phallus .
answer:
no