The skateboarder enjoys night skating at the skate park.
The skateboarder is sitting in a hospital bed with a broken leg.
One cannot be night skating and sitting at the hospital at the same time
exists e2 e1 x1 x2 x3 x4.(n_park(x3) & of(x3,x4) & n_skate(x4) & n_skateboarder(x1) & for(e1,e2) & at(e2,x3) & Actor(e2,x1) & v_skate(e2) & Theme(e1,x2) & Actor(e1,x1) & v_enjoy(e1) & n_night(x2))
exists e1 s1 x1 x2 x3 x4.(n_skateboarder(x1) & with(e1,x4) & n_leg(x4) & a_broken(s1) & Theme(s1,x4) & in(e1,x2) & n_bed(x2) & of(x2,x3) & n_hospital(x3) & Actor(e1,x1) & v_sit(e1))