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: Human gestation is divided into three trimesters of ____ months each.
Example Output: three

Example Input: Salsa works on the basis of Mambo - a pattern of ____ steps danced over eight counts of music.
Example Output: six

Example Input: Individual caribou can lose up to ____ pounds of blood during a summer season.
Example Output:
five