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:
Ferrets normally tremble for ____ reasons.

Ex Output:
two


Ex Input:
Phylogenetic analyses confirm ____ mitochondrial mallard clades.

Ex Output:
two


Ex Input:
Lampreys reach up to a length of ____ feet and as small as five inches.

Ex Output:

four