A bad storm is slowing traffic on a busy city street.
It is a nice and sunny day in Philadelphia.
Bad storms don't happen when it's a nice sunny day, they're opposites.
exists e1 s1 s2 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_slow(e1) & on(x2,x3) & n_street(x3) & of(x3,x4) & n_city(x4) & a_busy(s2) & Theme(s2,x3) & n_traffic(x2) & n_storm(x1) & a_bad(s1) & Theme(s1,x1))
exists p1 x1 x3.(ne_geo_philadelphia(x3) & n_thing(x1) & exists s1 s2 x2.((x1 = x2) & in(x2,x3) & n_day(x2) & a_sunny(s2) & Theme(s2,x2) & a_nice(s1) & Theme(s1,x2)))