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:
Soy products contain ____ known classes of anti-cancer agents, including phytoestrogens.

Ex Output:
five


Ex Input:
Fryers have ____ thermostats.

Ex Output:

two