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: ecstatic, content, disappointed, sad, service

SOLUTION: service

PROBLEM: format, file, support, text, download

SOLUTION: support

PROBLEM: ram, file, prepare, keys, format

SOLUTION:
prepare