Several people are window shopping from the sidewalk.
Many of these people have already made purchases in this shopping area.
Nobody has necessarily made any purchases from anywhere.
exists p1 s1 x1 x4.(n_sidewalk(x4) & exists x2 x3.((x1 = x2) & from(x2,x4) & n_shopping(x2) & of(x2,x3) & n_window(x3)) & n_people(x1) & a_several(s1) & Theme(s1,x1))
exists e1 s1 x1 x2 x3 x4 x5.(n_area(x4) & of(x4,x5) & n_shopping(x5) & n_people(x2) & a_already(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x1) & v_make(e1) & in(x3,x4) & n_purchase(x3) & of(x1,x2) & n_quantity(x1))