Two people are engaged in a fencing match.
Two people are fencing.
Two people can only be engaged in a fencing match if they are fencing.
exists e1 s1 x1 x2.(in(e1,x2) & n_match(x2) & a_fencing(s1) & Theme(s1,x2) & Theme(e1,x1) & v_engage(e1) & n_people(x1) & card_eq_2(x1))
exists e1 x1.(Actor(e1,x1) & v_fence(e1) & n_people(x1) & card_eq_2(x1))