Women are on business selling vegetables.
Some women are selling vegetables.
women are selling vegetables is same as women are selling vegetables
exists p1 x1.(exists e1 x2 x3.(on(x1,x2) & n_vegetable(x2) & Actor(e1,x2) & v_sell(e1) & of(x2,x3) & n_business(x3)) & n_woman(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_sell(e1) & n_vegetable(x2) & n_woman(x1))