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

Ex Input:
Pelvic fins are well developed, and rather narrow, with _ to ten fin rays.

Ex Output:
nine

Ex Input:
Coral reefs make up only _ per cent of the area of the Great Barrier Reef.

Ex Output:
five

Ex Input:
Manatees reach sexual maturity in two to _ years.

Ex Output:
five