People sitting and waving in a mini Pullman train.
People wave to their family members as a train drives away.
It cannot be inferred that the people are waving to family members and that the train is driving away.
exists e1 e2 s1 x1 x2 x3 x4.(in(e2,x3) & n_train(x3) & of(x3,x4) & n_pullman(x4) & a_mini(s1) & Theme(s1,x3) & Actor(e2,x2) & v_wave(e2) & n_people(x2) & Actor(e1,x1) & v_sit(e1) & n_people(x1))
exists s1 x1 x2 x3 x4 x5 x6 x7.(a_topic(x1) & as(x1,x5) & Theme(s1,x7) & a_away(s1) & (x5 = x7) & n_drive(x5) & of(x5,x6) & n_train(x6) & to(x1,x3) & n_member(x3) & of(x3,x4) & n_family(x4) & of(x3,x1) & n_thing(x1) & n_wave(x1) & of(x1,x2) & n_people(x2))