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: Pyrimidines contain ____ ring and purines contain two rings.

SOLUTION: one

PROBLEM: Trinity is cruciform in shape, the cross formed by ____ squares.

SOLUTION:
six