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.

[Q]: Sin divides minds into ____ halves.
[A]: two


[Q]: Birds have ____ basic types of feathers.
[A]: three


[Q]: Alpacas are pseudo-ruminants, with a single stomach divided into ____ compartments.
[A]:
three