. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "a person who contributes to the fulfillment of a need or furtherance of an effort or purpose" . . . . . "Wordnet Synset 09835195-n" . . . . . . . . . . . . . . . . . . . . . . . .