Skateboarding on a beautiful day.
IT's a beautiful day
Just because someone is skateboarding on a beautiful day does not mean does not mean that " IT's " currently a beautiful day.
exists e1 s1 x1 x2.(on(e1,x2) & n_day(x2) & a_beautiful(s1) & Theme(s1,x2) & Actor(e1,x1) & v_skateboard(e1) & n_thing(x1))
all s1 x1.((n_day(x1) & a_beautiful(s1) & Theme(s1,x1)) -> exists x2 x3.(a_topic(x2) & for(x2,x1) & n_'s(x2) & (x2 = x3) & ne_nam_it(x3)))