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:
Multiplications are always ____ complemental.
answer:
two


question:
Some clouds are so thick and dense that ____ stars can shine through.
answer:
no


question:
Goats have all four sets of permanent teeth usually by ____ years of age.
answer:

four