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:
Girls have ____ ovaries.
answer:
two


question:
Stereo cameras track the fly's movement in ____ dimensions.
answer:
three


question:
Symmetric algorithms use secret keys shared by ____ different users.
answer:

two