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:
Some animals have only ____ or three chambers .
answer:
two


question:
Macular degeneration comes in ____ forms, dry and wet.
answer:
two


question:
Penguins have ____ seasons in their year, as follows.
answer:

four