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: food 
Words: sausage, frank, loyalty, cheese, pork
loyalty

Category: mode of transportation 
Words: bus, fly, jog, beetle, drive
beetle

Category: date status 
Words: up to the moment, brine, data sets, current, belated

brine