A solitary pedestrian walks through the downtown area.
A person walks downtown to buy ice cream.
A person walking through the downtown area does not necessarily imply the person is walking to buy ice cream.
exists e1 s1 x1 x2 x3.(n_area(x2) & of(x2,x3) & n_downtown(x3) & through(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_pedestrian(x1) & a_solitary(s1) & Theme(s1,x1))
exists e1 p1 x1 x2.(Topic(e1,p1) & Recipient(e1,x2) & Actor(e1,x1) & v_walk(e1) & exists e2 x3 x4.(Theme(e2,x3) & Actor(e2,x2) & v_buy(e2) & n_cream(x3) & of(x3,x4) & n_ice(x4)) & n_downtown(x2) & n_person(x1))