A group of people in dark colored clothing are line dancing on a wooden floor.
People are sitting on a lawn.
People who are dancing cannot be sitting. A wooden floor is not a lawn.
exists e2 e1 p1 s1 s2 x1 x2 x3 x4.(for(p1,e2) & on(e2,x4) & n_floor(x4) & a_wooden(s2) & Theme(s2,x4) & Actor(e2,x1) & v_dance(e2) & exists x5.((x1 = x5) & n_line(x5)) & of(x1,x2) & in(x2,x3) & n_clothing(x3) & Theme(e1,x3) & v_color(e1) & a_dark(s1) & Theme(s1,x3) & n_people(x2) & n_group(x1))
exists e1 x1 x2.(on(e1,x2) & n_lawn(x2) & Actor(e1,x1) & v_sit(e1) & n_people(x1))