A riot squad making their way through a crowd.
A riot squad sits on the cafe steps.
The squad cannot be making their way through a crowd and sit on the steps at the same time.
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & through(e1,x5) & n_crowd(x5) & Theme(e1,x4) & Actor(e1,x3) & v_make(e1) & n_way(x4) & of(x4,x1) & n_thing(x1) & (x1 = x3) & n_squad(x1) & of(x1,x2) & n_riot(x2))
exists e1 x1 x2 x3 x4.(n_step(x3) & of(x3,x4) & n_cafe(x4) & on(e1,x3) & Actor(e1,x1) & v_sit(e1) & n_squad(x1) & of(x1,x2) & n_riot(x2))