A boy in a hat is reaching towards a concrete structure.
The person is extending his arm.
Reaching is a way of extending your arm.
exists e1 s1 x1 x2 x3.(towards(e1,x3) & n_structure(x3) & a_concrete(s1) & Theme(s1,x3) & Actor(e1,x1) & v_reach(e1) & in(x1,x2) & n_hat(x2) & n_boy(x1))
exists e1 x1 x2.(n_arm(x2) & of(x2,x1) & n_male(x1) & n_person(x1) & Theme(e1,x2) & Actor(e1,x1) & v_extend(e1))