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: Object permanence is seen in children ____ to twelve months old .
Example Output: eight

Example Input: Green lines represent the boundaries between the ____ hemispheres.
Example Output: two

Example Input: Triplets are ____ berries on the same stalk.
Example Output:
three