Three young people stand on the street conversing.
The boys are sitting and talking on a bench.
Sitting and standing cannot happen simultaneously.
exists e1 s1 x1 x2 x3.(n_conversing(x2) & of(x2,x3) & n_street(x3) & on(e1,x2) & Actor(e1,x1) & v_stand(e1) & n_people(x1) & a_young(s1) & Theme(s1,x1) & card_eq_3(x1))
exists e1 e2 x1 x2.(n_boy(x1) & on(e2,x2) & n_bench(x2) & Actor(e2,x1) & v_talk(e2) & Actor(e1,x1) & v_sit(e1))