Man working on old truck while child watches.
The man is trying to fix his truck.
fix his truck is the same as working on an old truck
exists e1 s1 x1 x2 x3 x4 x5.(a_topic(x1) & while(e1,x4) & n_watch(x4) & of(x4,x5) & n_child(x5) & on(e1,x3) & n_truck(x3) & a_old(s1) & Theme(s1,x3) & Actor(e1,x2) & v_work(e1) & (x1 = x2) & n_man(x1))
exists e1 p1 x1 x2.(n_truck(x2) & of(x2,x1) & n_male(x1) & n_man(x1) & Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2.(Theme(e2,x2) & Actor(e2,x1) & v_fix(e2)))