premise: A man in a black shirt is working out in a gym, while a woman behind him is on a treadmill.
hypothesis: A married couple exercises together.
explanation_1: The people are not necessarily a married couple.
explanation_2: There is no way to know the man and woman are married.
explanation_3: A man and a woman both working out in a gym near each other does not imply that they are married.
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 s1 s2 x1 x2.(Theme(s2,x1) & a_together(s2) & n_exercise(x1) & of(x1,x2) & n_couple(x2) & a_married(s1) & Theme(s1,x1))