A group of men are engaged in dialogue at work
Some men are talking.
Group means some men and engaged in dialogue is same as talking.
exists e1 x1 x2 x3 x4.(in(e1,x3) & at(x3,x4) & n_work(x4) & n_dialogue(x3) & Theme(e1,x1) & v_engage(e1) & of(x1,x2) & n_man(x2) & n_group(x1))
exists e1 x1.(Actor(e1,x1) & v_talk(e1) & n_man(x1))