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 Input:
Some adjectives have ____ forms, others have four.

Ex Output:
two


Ex Input:
Snow leopards eat almost anything they can catch, often hunting animals ____ times their size.

Ex Output:
three


Ex Input:
Meteorites come in ____ forms such as stony, stony-iron and iron based.

Ex Output:

three