A child sleds.
a kid is sledding for the first time ever
Just because a child sleds it does not mean it is the first time the kid ever went sledding.
exists x1 x2.(a_topic(x1) & n_sled(x1) & of(x1,x2) & n_child(x2))
exists e1 s1 x1 x2.(n_time(x2) & a_first(s1) & Theme(s1,x2) & for(e1,x2) & r_ever(x2) & Actor(e1,x1) & v_sled(e1) & n_kid(x1))