A man smiles while drilling into a pumpkin with a power drill.
The man is cooking his dinner outside.
One cannot be drilling and cooking simultaneously.
exists e1 e2 x1 x2 x3 x4.(while(e1,e2) & with(e2,x3) & n_drill(x3) & of(x3,x4) & n_power(x4) & into(e2,x2) & n_pumpkin(x2) & Actor(e2,x1) & v_drill(e2) & Actor(e1,x1) & v_smile(e1) & n_man(x1))
exists e1 s1 x1 x2.(n_dinner(x2) & of(x2,x1) & n_male(x1) & n_man(x1) & a_outside(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_cook(e1))