When working on meaning, linguists often used prefix notation, allowing the ordered list of symbols following the name of the predicate to stand for the "-arity"the number of arguments-of the particular predicate.
p(a) could represent an adjective like hungry or a verb like vanish; p(a,b), relating two things to each other, could stand for an adjective like different or a verb like love; and p(a,b,c) with three arguments could stand for an adjective like intermediate or a verb like give, show, or tell.