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.

Example Input: Snow leopards eat almost anything they can catch, often hunting animals ____ times their size.
Example Output: three

Example Input: Prions are protein molecules which have ____ metastable states.
Example Output: two

Example Input: Scientific names consist of ____ parts, hence they are binomial.
Example Output:
two