A climber wearing a white helmet is perched on the side of a rock face.
A person is doing push ups in a room.
A person cannot be in a room an on the side of a rock face simultaneously.
exists e2 e1 s1 x1 x2 x3 x4 x5 x6.(n_side(x4) & on(e2,x4) & of(x4,x5) & n_face(x5) & of(x5,x6) & n_rock(x6) & Theme(e2,x1) & v_perch(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_helmet(x3) & a_white(s1) & Theme(s1,x3) & (x1 = x2) & n_climber(x1))
exists e1 x1 x2 x3 x4.(in(e1,x4) & n_room(x4) & Time(e1,x3) & n_up(x3) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_push(x2) & n_person(x1))