A man wearing a chef's coat is doing a demonstration for a group of people.
A chef chops food for a crowd.
doing a demonstration for a group of people doesn't imply chopping food
exists e1 e2 x1 x2 x3 x4 x5 x6 x7.(Theme(e2,x5) & Actor(e2,x1) & v_do(e2) & for(x5,x6) & of(x6,x7) & n_people(x7) & n_group(x6) & n_demonstration(x5) & Theme(e1,x4) & Actor(e1,x2) & v_wear(e1) & n_coat(x4) & of(x4,x3) & n_chef(x3) & (x1 = x2) & n_man(x1))
exists e1 x1 x2 x3.(for(e1,x3) & n_crowd(x3) & Theme(e1,x2) & Actor(e1,x1) & v_chop(e1) & n_food(x2) & n_chef(x1))