A march for a cause is happening in a city area.
There is a march outside in a city area.
A march for a cause is happening in a city area implies that the march is outside.
exists e1 x1 x2 x3 x4.(in(e1,x3) & n_area(x3) & of(x3,x4) & n_city(x4) & Actor(e1,x1) & v_happen(e1) & for(x1,x2) & n_cause(x2) & n_march(x1))
exists p1 x1 x2 x3 x4 x5.((x1 = x2) & in(x2,x4) & n_area(x4) & of(x4,x5) & n_city(x5) & n_outside(x2) & of(x2,x3) & n_march(x3))