The skateboarder enjoys night skating at the skate park.
The skateboarder and his date are having fun skating together.
Just because a skater is night skating at a skate park doesn't mean they are on a date or skating together with anyone.
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 e2 e1 s1 x1 x2 x3 x4 x5.(n_date(x3) & of(x3,x2) & n_male(x2) & n_skateboarder(x2) & Theme(e2,x4) & Actor(e2,x1) & v_have(e2) & a_together(s1) & Manner(e1,s1) & Actor(e1,x5) & v_skate(e1) & (x4 = x5) & n_fun(x4) & subset_of(x3,x1) & subset_of(x2,x1))