TASK DEFINITION: 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.
PROBLEM: Baboons can travel up to ____ miles a day.

SOLUTION: six

PROBLEM: Most insects have one or ____ pairs of wings.

SOLUTION: two

PROBLEM: Epistatic interactions come in ____ types, thus there are possible interactions.

SOLUTION:
four