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:
Fruit is a silique opening by ____ valves.
answer:
two


question:
Some animals can survive freezing, but ____ animals can survive grinding.
answer:
no


question:
Sexual maturity is reached at ____ years of age.
answer:

four