A chef tastes his food over a boiling pot.
A chef is leading a cooking class.
Just because a chef tastes her food it does not mean the chef is leading a cooking class.
exists e1 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_taste(e1) & over(x2,x3) & n_pot(x3) & of(x3,x4) & n_boiling(x4) & n_food(x2) & of(x2,x1) & n_male(x1) & n_chef(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_lead(e1) & n_class(x2) & of(x2,x3) & n_cooking(x3) & n_chef(x1))