Two men and one woman engage in conversation on a snowy day.
People talking on their way to class.
People don't necessarily engage in conversation by talking. The people aren't necessarily going to class.
exists e1 s1 x1 x2 x3 x4 x5.(on(e1,x5) & n_day(x5) & a_snowy(s1) & Theme(s1,x5) & in(e1,x4) & n_conversation(x4) & Actor(e1,x1) & v_engage(e1) & n_woman(x3) & card_eq_1(x3) & n_man(x2) & card_eq_2(x2) & subset_of(x3,x1) & subset_of(x2,x1))
exists e1 x1 x2 x3 x4.(a_topic(x1) & on(e1,x3) & to(x3,x4) & n_class(x4) & n_way(x3) & of(x3,x1) & n_thing(x1) & Actor(e1,x2) & v_talk(e1) & (x1 = x2) & n_people(x1))