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:
Multiplications are always ____ complemental.

Ex Output:
two


Ex Input:
Cleavage is good in ____ directions at right angles.

Ex Output:
two


Ex Input:
Pups get their sight in about ____ days.

Ex Output:

ten