A chef cooks something in a skillet.
the heat is up high
A chef cooks does not necessarily mean the heat is up high.
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_cook(e1) & in(x2,x3) & n_skillet(x3) & n_thing(x2) & n_chef(x1))
exists s1 x1.(n_heat(x1) & r_up(s1) & Theme(s1,x1) & a_high(s1))