Two men are sitting indoors, one of them has headphones.
There are two men sitting inside, one is listening to music.
A man can wear headphones without listening to music.
exists p1 x1.(exists e1 p2 x2.((x1 = x2) & exists e2 x3 x4.(Theme(e2,x4) & Actor(e2,x3) & v_have(e2) & n_headphone(x4) & of(x3,x1) & n_thing(x3) & card_eq_1(x3)) & that(x2,p2) & n_indoor(x2) & Actor(e1,x2) & v_sit(e1)) & n_thing(x1) & n_man(x1) & card_eq_2(x1))
exists e1 p1 x1 x2 x3.(to(e1,x3) & n_music(x3) & Actor(e1,x2) & v_listen(e1) & n_thing(x2) & card_eq_1(x2) & exists e2 s1 x4 x5.((x1 = x4) & a_inside(s1) & Manner(e2,s1) & Actor(e2,x5) & v_sit(e2) & (x4 = x5) & n_man(x4) & card_eq_2(x4)))