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: Success is a function of ____ things.

SOLUTION: two

PROBLEM: Prokaryotes mean they have ____ nucleus in which they store genetic material.

SOLUTION: no

PROBLEM: Propane contains three carbon atoms and ____ hydrogen atoms.

SOLUTION:
eight