A boy is playing outside.
A girl plays inside.
A boy is not the same as a girl.
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_outside(x2) & n_boy(x1))
exists e1 s1 x1.(a_inside(s1) & Manner(e1,s1) & Actor(e1,x1) & v_play(e1) & n_girl(x1))