premise: Some youngsters are playing a card game
hypothesis: people play cards
explanation_1: Youngsters are people.
explanation_2: Youngsters are a group of people, so if youngsters are playing a card game, that means people are playing cards.
explanation_3: Some youngsters is inferred as people .
premise_logic: exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_game(x2) & of(x2,x3) & n_card(x3) & n_youngster(x1))
hypothesis_logic: exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_card(x2) & n_people(x1))