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: Sedge wrens are listed as endangered by all ____ states.

SOLUTION: three

PROBLEM: Multiplications are always ____ complemental.

SOLUTION: two

PROBLEM: Wolverine tracks are similar to wolf prints, but a wolf has ____ toes, whereas a wolverine has five.

SOLUTION:
four