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.

Cichlids are popular in the aquarium hobby for a ____ reason.
four

Rabbinic literature is made up of ____ major kinds of works.
five

Leafy spurge is a weed that meets all ____ criteria.

three