A group of people are sitting and a man is talking to them.
A group of people are laughing and a man is shouting to them.
Sitting and talking does not imply laughing or shouting.
exists e2 e1 x1 x2 x3.(to(e2,x1) & n_thing(x1) & Actor(e2,x3) & v_talk(e2) & n_man(x3) & Actor(e1,x1) & v_sit(e1) & of(x1,x2) & n_people(x2) & n_group(x1))
exists e2 e1 x1 x2 x3.(to(e2,x1) & n_thing(x1) & Actor(e2,x3) & v_shout(e2) & n_man(x3) & Actor(e1,x1) & v_laugh(e1) & of(x1,x2) & n_people(x2) & n_group(x1))