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: Malaria kills up to ____ million people each year.

SOLUTION: two

PROBLEM: Sexual maturity is reached at ____ years, and females calve every other year.

SOLUTION: four

PROBLEM: Hydrocarbons have ____ ozone depletion potential, and very low global warming impact.

SOLUTION:
zero