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: Bulbs bloom ____ to six weeks after planting.
Example Output: four

Example Input: Most bacteria have one or ____ circular chromosomes.
Example Output: two

Example Input: Hippos have ____ webbed toes on each foot and like to live in slow-moving or still waters.
Example Output:
four