You have a man cooking burgers and hotdogs on a dirty park grill.
A person cooking burgers and hotdogs for the family cookout at the park.
Just because a man is cooking burgers and hotdogs on a park grill doesn't mean it has anything to do with a family cookout.
exists e1 x1 x2 x3 x4 x5 x6 x7 x8.(on(e1,x6) & n_grill(x6) & of(x6,x8) & n_park(x8) & of(x6,x7) & n_dirty(x7) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & subset_of(x5,x2) & n_hotdog(x5) & subset_of(x1,x2) & n_burger(x1) & of(x1,x4) & n_cooking(x4) & of(x1,x3) & n_man(x3) & n_person(x1))
exists s1 x1 x2 x3 x4 x5 x6.(n_park(x6) & n_cookout(x4) & of(x4,x5) & n_family(x5) & a_topic(s1) & subset_of(x3,s1) & for(x3,x4) & at(x4,x6) & n_hotdog(x3) & subset_of(x1,s1) & n_cooking(x1) & Time(x1,x2) & n_burger(x2) & n_person(x1))