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: Pertussis is highly contagious with symptoms that can linger six to ____ weeks.

SOLUTION: ten

PROBLEM: Beryllium has ____ protons and four electrons.

SOLUTION: four

PROBLEM: Tobacco currently kills ____ million people per year.

SOLUTION:
four