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: Merlin is about five and ____ half inches long.

SOLUTION: one

PROBLEM: Some species take ____ to two years, or even more.

SOLUTION: one

PROBLEM: Every positive number has ____ square roots.

SOLUTION:
two