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:
Colostrum is bright yellowish thick milk secreted in the first ____ to six days after birth.

Ex Output:
three

Ex Input:
Sin divides minds into ____ halves.

Ex Output:
two

Ex Input:
Scientific understanding based on the experimental method has a history of only ____ hundred years.

Ex Output:
three