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:
All orthodontists are dentists, but only about ____ percent of dentists are orthodontists.
answer:
six


question:
Insects go through either three or ____ stages.
answer:
four


question:
Most men sleep for ____ hours when seven are sufficient.
answer:

eight