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 children start primary school at ____ years of age.
answer:
five


question:
China has about one in ____ of all smokers in the world.
answer:
four


question:
Albino barbs are a light yellow with ____ barely visible stripes.
answer:

four