premise: A man in a black shirt is working out in a gym, while a woman behind him is on a treadmill.
hypothesis: Two people exercise indoors.
explanation_1: The man and the woman behind him, constitute two people.
explanation_2: Man and woman are two people, and working out is a form of exercise.
explanation_3: there is a men and women so there should be two people. working out in a gym is inferred as exercise indoors.
premise_logic: exists e1 p1 s1 s2 x1 x2 x3.(exists p2 x4.(exists x5.(on(x4,x5) & n_treadmill(x5)) & behind(x4,x1) & n_woman(x4)) & n_male(x1) & while(e1,p1) & in(e1,x3) & n_gym(x3) & a_out(s2) & Manner(e1,s2) & Actor(e1,x1) & v_work(e1) & in(x1,x2) & n_shirt(x2) & a_black(s1) & Theme(s1,x2) & n_man(x1))
hypothesis_logic: exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_exercise(e1) & n_indoor(x2) & n_people(x1) & card_eq_2(x1))
premise_sim: exists e1 p1 s1 s2 x1 x2 x3.(while(e1,p1) & v_work(e1) & n_shirt(x2) & n_man(x1) & n_male(x1) & n_gym(x3) & in(x1,x2) & in(e1,x3) & exists x4.(n_woman(x4) & exists x5.(on(x4,x5) & n_treadmill(x5)) & behind(x4,x1)) & a_out(s2) & a_black(s1) & Theme(s1,x2) & Manner(e1,s2) & Actor(e1,x1))
hypothesis_sim: exists e1 x1 x2.(v_exercise(e1) & n_people(x1) & n_indoor(x2) & card_eq_2(x1) & Theme(e1,x2) & Actor(e1,x1))