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:
Millipedes have ____ pairs of legs on each body segment.

Ex Output:
two


Ex Input:
Sexual reproduction involves the union of cells from ____ parents.

Ex Output:
two


Ex Input:
Ornithologists recognize ____ subspecies of the Gray Singing Finch.

Ex Output:

three