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:
Mature plants can be up to ____ feet tall.
answer:
six


question:
Seedlings normally can take up to ____ to five years to produce their first bloom.
answer:
three


question:
Acupuncture is used by about ____ in seven general practitioners.
answer:

one