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: All crabs have ____ pair of chelipeds and four pairs of walking legs .

SOLUTION: one

PROBLEM: Poodles come in ____ poodle sizes and shapes.

SOLUTION: three

PROBLEM: Mediastinal teratomas are ____ times more common in adults than in children.

SOLUTION:
five