A person in green surfing a wave.
A person sitting in the living room.
either the person is surfing or sitting in the living room
exists e1 x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_surf(e1) & n_wave(x4) & (x2 = x3) & n_green(x2) & n_person(x1))
exists e1 x1 x2 x3 x4.(n_room(x3) & of(x3,x4) & n_living(x4) & a_topic(x1) & in(e1,x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_person(x1))