The Goalie, is defending his net
The goalie is playing soccer.
Sentence one says this person is a goalie at a net, which means Soccer or hockey maybe, but sentence 2 says it was actually soccer
exists e1 x1 x2.(n_net(x2) & of(x2,x1) & n_male(x1) & ne_nam_goalie(x1) & Theme(e1,x2) & Actor(e1,x1) & v_defend(e1))
exists e1 x1 x2.(n_goalie(x1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_soccer(x2))