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:
Amphibians have ____ legs, and often look like reptiles.
answer:
four


question:
Dogs can begin gundog training as early as ____ months of age.
answer:
six


question:
Space has ____ boundaries and extends endlessly in all directions.
answer:

no