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

Ex Input:
Interstate commerce is commerce conducted in at least _ states.

Ex Output:
two

Ex Input:
Coho usually live for _ years and grow rapidly in their final year.

Ex Output:
three

Ex Input:
Studies show our brains comprehend speech at _ to five times faster than people normally speak.

Ex Output:
four