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: Dashes are ____ times the length of dots.

SOLUTION: three

PROBLEM: Pigs grow very quickly and are normally ready for sale at ____ to six months of age.

SOLUTION: four

PROBLEM: Unpolarized light is incident on ____ ideal polarizers in series.

SOLUTION:
two