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:
Plants produce seed at ____ years of age.
answer:
eight


question:
Primates have ____ digits on their forelimbs.
answer:
five


question:
Most healthy teenagers get at least ____ colds a year.
answer:

three