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:
Food waste is transformed into soil-like humus in three to ____ days.

Ex Output:
seven


Ex Input:
Lancelets display all ____ of the vertebrate characteristics throughout their lives.

Ex Output:
four


Ex Input:
Muskrats are semi-aquatic and prefer locations with four to ____ feet of water.

Ex Output:

six