A young boy in a blue hat is walking up an alleyway made of stones.
A man walks down the street.
A man and a boy are different ages.  A street and an alleyway are different types of passages.
exists e1 e2 s1 s2 s3 x1 x2 x3 x4 x5.(a_up(s3) & Manner(e2,s3) & Theme(e2,x3) & Actor(e2,x1) & v_walk(e2) & of(e1,x5) & n_stone(x5) & Theme(e1,x4) & v_make(e1) & (x3 = x4) & n_alleyway(x3) & in(x1,x2) & n_hat(x2) & a_blue(s2) & Theme(s2,x2) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(n_street(x2) & a_down(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_man(x1))