Two people are fencing and two other people are nearby.
Two men are fencing to show off for their girlfriends.
The other people may not be their girlfriends.
exists e1 s1 x1 x2.(Theme(s1,x2) & a_nearby(s1) & -(x2 = x1) & n_people(x1) & n_people(x1) & n_people(x2) & card_eq_2(x2) & Actor(e1,x1) & v_fence(e1) & card_eq_2(x1))
exists e1 p1 x1 x2.(Topic(e1,p1) & Actor(e1,x1) & v_fence(e1) & exists e2 s1.(a_off(s1) & Manner(e2,s1) & for(e2,x2) & Actor(e2,x1) & v_show(e2)) & n_girlfriend(x2) & of(x2,x1) & n_thing(x1) & n_man(x1) & card_eq_2(x1))