TASK DEFINITION: Given a category and a set of five words, find the word from the set that does not belong (i.e. is the least relevant) with the other words in the category. Words are separated by commas.
PROBLEM: Category: secretary duty 
Words: organize, support, text, sort mail, file

SOLUTION: text

PROBLEM: Category: emotional status 
Words: fret, emotional supports, output cord, angry, concerned

SOLUTION: output cord

PROBLEM: Category: animal 
Words: iguana, goat, fish, climbing, shark

SOLUTION:
climbing