Man sitting on a stool in front of a stall that sells football scarves.
Man sits at a stall selling hockey shirts.
The stall either sells football scarves or it sells hockey shirts, not both.
exists e1 e2 x1 x2 x3 x4 x5 x6 x7 x8.(a_topic(x1) & in(e1,x4) & of(x4,x5) & Theme(e2,x7) & Actor(e2,x6) & v_sell(e2) & n_scarf(x7) & of(x7,x8) & n_football(x8) & (x5 = x6) & n_stall(x5) & n_front(x4) & on(e1,x3) & n_stool(x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_man(x1))
exists e1 e2 x1 x2 x3 x4.(for(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_sell(e2) & n_shirt(x3) & of(x3,x4) & n_hockey(x4) & at(e1,x2) & n_stall(x2) & Actor(e1,x1) & v_sit(e1) & n_man(x1))