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: ocean 
Words: flow, current, course, moon, dastards

SOLUTION: dastards

PROBLEM: Category: social gathering 
Words: club, group, meeting, grilled cheese, convention

SOLUTION: grilled cheese

PROBLEM: Category: military rank 
Words: soldier, captain, typical, colonel, general

SOLUTION:
typical