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: Counterpoint is simply ____ or more melodies played simultaneously.

SOLUTION: two

PROBLEM: Most children start primary school at ____ years of age.

SOLUTION: five

PROBLEM: Menstruation occurs about ____ days after detumescence begins, and lasts for about three days.

SOLUTION:
nine