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.

Fuzzy logic is an attempt to combine the ____ techniques.
two

Finches breed when the female is over one year old and the male is under ____ year old.
five

Caterpillars are solitary and develop through ____ instars.

five