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

Ex Input:
Glycolysis occurs in the cytoplasm and produces _ pyruvic acid.

Ex Output:
two


Ex Input:
Psychoanalysis is an intensive form of psychotherapy that meets _ to five times a week.

Ex Output:
four


Ex Input:
Reds mature well for _ to eight years.

Ex Output:

six