a girl is sleeping in the metro by putting her head on his boyfriend, s shoulder
A couple is on a bus.
Is the only logical word to choose in this sentence.
exists e1 p1 x1 x3 x4 x5.(n_boyfriend(x5) & of(x5,x4) & n_male(x4) & n_head(x4) & of(x4,x3) & n_female(x3) & n_metro(x3) & exists e3 e2 x2.(by(e2,e3) & on(e3,x5) & Theme(e3,x4) & Actor(e3,x2) & v_put(e3) & in(e2,x3) & Actor(e2,x2) & v_sleep(e2) & n_girl(x2)) & Topic(e1,p1) & Actor(e1,x1) & v_s(e1) & n_shoulder(x1))
exists p1 x1.(exists x2.(on(x1,x2) & n_bus(x2)) & n_couple(x1))