A little boy in an apron helps his mother cook.
A young boy is in a restaurant kitchen.
Not all kitchens are in a restaurant.
exists e1 s1 x1 x2 x3 x4.(Theme(e1,x3) & Actor(e1,x1) & v_help(e1) & n_cook(x3) & of(x3,x4) & n_mother(x4) & of(x3,x1) & n_male(x1) & in(x1,x2) & n_apron(x2) & n_boy(x1) & a_little(s1) & Theme(s1,x1))
exists p1 s1 x1.(exists x2 x3.(in(x1,x2) & n_kitchen(x2) & of(x2,x3) & n_restaurant(x3)) & n_boy(x1) & a_young(s1) & Theme(s1,x1))