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

Ex Input:
Most orangutans are four to _ feet long, some can reach a length of six feet.

Ex Output:
five


Ex Input:
Chlorine is manufactured in _ ways.

Ex Output:
two


Ex Input:
Gestation is _ to nine months long, after which a single calf is born.

Ex Output:

eight