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: Environmentalists warn that ____ turtle species are in severe decline from over-exploitation.
Example Output: six

Example Input: Compound objects have ____ representations themselves.
Example Output: no

Example Input: Pupae usually transform into adults two to ____ days later.
Example Output:
three