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

Ex Input:
Whales have only _ enemies-man and the killer whale.

Ex Output:
two

Ex Input:
Joint Tenants are _ or more individuals owning interment rights.

Ex Output:
two

Ex Input:
Cognitive therapy is a time-limited treatment lasting three to _ months.

Ex Output:
four