premise: Two girls smile for the camera.
hypothesis: People are smiling.
explanation_1: Two girls are people.
explanation_2: People tend to smile for a camera.
explanation_3: Girls are people.
premise_logic: exists e1 x1 x2.(n_camera(x2) & for(e1,x2) & Actor(e1,x1) & v_smile(e1) & n_girl(x1) & card_eq_2(x1))
hypothesis_logic: exists e1 x1.(Actor(e1,x1) & v_smile(e1) & n_people(x1))