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:
Teething begins for most babies around ____ to six months.
answer:
four


question:
Ozone leaves ____ by-products except pure oxygen.
answer:
no


question:
Most mammalian species have between ____ and fifteen types of Toll-like receptors.
answer:

ten