a little boy wearing a raincoat plays with a mop.
A boy is playing with a mop.
A boy is a generalization of a little boy.
exists e1 e2 s1 x1 x2 x3 x4.(with(e2,x4) & n_mop(x4) & Actor(e2,x1) & v_play(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_raincoat(x3) & (x1 = x2) & n_boy(x1) & a_little(s1) & Theme(s1,x1))
exists e1 x1 x2.(with(e1,x2) & n_mop(x2) & Actor(e1,x1) & v_play(e1) & n_boy(x1))