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:
Reds can benefit from ____ to nine years' aging .
answer:
seven


question:
Conversations overlap, especially when more than three people try to talk in ____ room.
answer:
one


question:
People can have ____ legs, fur, tails, feathers, fins, scales and even exoskeletons.
answer:

four