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:
Sealants can normally last up to ____ years and hold up very well under normal chewing.
answer:
five


question:
Babies crawl into a pouch on the mother's belly and stay there ____ months.
answer:
four


question:
Junks have from ____ to three masts or sails.
answer:

two