A lady laughs at a man's gestures.
A woman is laughing
lady laughs is another way to say woman is laughing
exists e1 x1 x2 x3.(at(e1,x3) & n_gesture(x3) & of(x3,x2) & n_man(x2) & Actor(e1,x1) & v_laugh(e1) & n_lady(x1))
exists e1 x1.(Actor(e1,x1) & v_laugh(e1) & n_woman(x1))