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.

[EX Q]: Rifts develop from separate domes creating ____ legged rift faults that join each other.
[EX A]: three

[EX Q]: Sharks have ____ gill slits on each side of the head.
[EX A]: five

[EX Q]: Most herbal formulas contain ____ to twelve herbs in various combinations.
[EX A]:
six