A person in an apron is selling many different sized fish on a stand.
A person  is selling fish.
Selling many different sized fish is a sufficient condition for selling fish.
exists e1 s1 s2 x1 x2 x3 x4 x5.(n_fish(x4) & a_sized(s2) & Theme(s2,x4) & on(e1,x5) & n_stand(x5) & Theme(e1,x3) & Actor(e1,x1) & v_sell(e1) & -(x3 = x4) & n_fish(x3) & a_sized(s1) & Theme(s1,x3) & n_quantity(x3) & in(x1,x2) & n_apron(x2) & n_person(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_sell(e1) & n_fish(x2) & n_person(x1))