A man buys roses from a young woman in a white dress.
the guy dances in the street
Dances are different activities than buys roses.
exists e1 s1 s2 x1 x2 x3 x4.(from(e1,x3) & in(x3,x4) & n_dress(x4) & a_white(s2) & Theme(s2,x4) & n_woman(x3) & a_young(s1) & Theme(s1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_buy(e1) & n_rose(x2) & n_man(x1))
exists e1 x1 x2.(n_street(x2) & n_guy(x1) & in(e1,x2) & Actor(e1,x1) & v_dance(e1))