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: Birds have ____ basic types of feathers.

SOLUTION: three

PROBLEM: Television has ____ dimensions to work with, sight and sound.

SOLUTION: two

PROBLEM: Equiangular triangle is a triangle whose ____ angles are congruent.

SOLUTION:
three