A chef working in a kitchen using a knife.
The chef is chopping onions.
Just because the chef is working in a kitchen does not mean the chef is chopping onions.
exists e2 e1 x1 x2 x3 x4.(a_topic(x1) & for(e1,e2) & Theme(e2,x4) & Actor(e2,x2) & v_use(e2) & n_knife(x4) & in(e1,x3) & n_kitchen(x3) & Actor(e1,x2) & v_work(e1) & (x1 = x2) & n_chef(x1))
exists e1 x1 x2.(n_chef(x1) & Theme(e1,x2) & Actor(e1,x1) & v_chop(e1) & n_onion(x2))