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 healthy men experience about three to ____ erections in their sleep each night.
answer:
five


question:
Most bacteria have one or ____ circular chromosomes.
answer:
two


question:
Most caterpillars molt ____ or five times before they are full-grown.
answer:

four