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

Ex Input:
Arthritis is the leading cause of disability in the state affecting about one in _ adults.

Ex Output:
three


Ex Input:
Comets are a bit like giant dirty ice-balls with diameters between _ and fifty kilometres.

Ex Output:
five


Ex Input:
Organisms use _ different classes of redox centers in enzymes.

Ex Output:

three