premise: A couple sitting in white lawn chairs are smiling at the camera.
hypothesis: Two people are posing for a photograph.
explanation_1: Smiling at the camera is one way of posing for a photograph.
explanation_2: Couple are two people and smiling at the camera is rephrasing of posing for a photograph.
explanation_3: If the people are smiling at the camera they are posing.
premise_logic: exists e1 e2 s1 x1 x2 x3 x4 x5.(n_camera(x5) & at(e2,x5) & Actor(e2,x1) & v_smile(e2) & in(e1,x3) & n_chair(x3) & of(x3,x4) & n_lawn(x4) & a_white(s1) & Theme(s1,x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_couple(x1))
hypothesis_logic: exists e1 x1 x2.(for(e1,x2) & n_photograph(x2) & Actor(e1,x1) & v_pose(e1) & n_people(x1) & card_eq_2(x1))