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.

Category: secretary duty 
Words: schedule, file, answer calls, correspondence, ram
ram

Category: poker 
Words: chips, punch, deck, draw, queen
punch

Category: bird 
Words: crane, pelican, goose, davit, swallow

davit