At a fencing tournament in a gymnasium two fencers engage in a duel with their swords.
Two people engaging in sports together.
Both sentences are talking about gymnasium as a sport.
exists e1 x1 x2 x3 x4 x5 x6.(at(e1,x4) & in(x4,x6) & n_gymnasium(x6) & n_tournament(x4) & of(x4,x5) & n_fencing(x5) & in(e1,x2) & with(x2,x3) & n_sword(x3) & of(x3,x1) & n_thing(x1) & n_duel(x2) & Actor(e1,x1) & v_engage(e1) & n_fencer(x1) & card_eq_2(x1))
exists e1 s1 x1 x2 x3.(a_topic(x1) & a_together(s1) & Manner(e1,s1) & in(e1,x3) & n_sport(x3) & Actor(e1,x2) & v_engage(e1) & (x1 = x2) & n_people(x1) & card_eq_2(x1))