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:
Snowmobiles can accommodate ____ riders per vehicle.

Ex Output:
two


Ex Input:
Violets usually have ____ sepals at the base and have five petals.

Ex Output:
five


Ex Input:
Prion diseases appear to arise in ____ ways.

Ex Output:

three