Three firemen are conversing next to a firetruck.
Three firemen talk to one another next to a firetruck.
Conversing means talking to one another.
exists e1 x1 x2.(to(e1,x2) & n_firetruck(x2) & r_next(e1) & Actor(e1,x1) & v_converse(e1) & n_fireman(x1) & card_eq_3(x1))
exists e1 x1 x2 x3 x4.(to(e1,x3) & n_next(x4) & rel(x3,x4) & n_thing(x3) & card_eq_1(x3) & to(e1,x2) & n_firetruck(x2) & Actor(e1,x1) & v_talk(e1) & n_fireman(x1) & card_eq_3(x1))