The adult cooks over the fire as the child looks on.
People are cooking.
If someone cooks they are cooking
exists e1 s1 x1 x2 x3 x4.(n_child(x4) & n_fire(x3) & n_cook(x1) & of(x1,x2) & n_adult(x2) & a_on(s1) & Manner(e1,s1) & Actor(e1,x1) & v_look(e1) & over(x1,x3) & as(x3,x4))
exists e1 x1.(Actor(e1,x1) & v_cook(e1) & n_people(x1))