Four people have on white protective suits.
Four men are fishing in the lake.
one is about four unspecified people while the other is about four men
exists e1 s1 s2 x1 x2.(on(e1,x2) & n_suit(x2) & a_protective(s2) & Theme(s2,x2) & a_white(s1) & Theme(s1,x2) & Actor(e1,x1) & v_have(e1) & n_people(x1) & card_eq_4(x1))
exists e1 x1 x2.(n_lake(x2) & in(e1,x2) & Actor(e1,x1) & v_fish(e1) & n_man(x1) & card_eq_4(x1))