TASK DEFINITION: Given a set of five words, generate the word from the set that does not belong (i.e. is the least relevant) with the other words. Words are separated by commas.
PROBLEM: space, file, answer calls, fax, support

SOLUTION: space

PROBLEM: format, sort mail, make coffee, order office supplies, file

SOLUTION: format

PROBLEM: current, flow, signal, dastards, sea

SOLUTION:
dastards