In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

Input: Consider Input: Some bird feeders have _ perches at all, but neither do tree trunks.

Output: no

Input: Consider Input: Alcohol is high in calories - it supplies _ calories per gram and no nutrients worth mentioning.

Output: seven

Input: Consider Input: Complete dementia occurs within _ months.
Output: six