A group of people sitting around on a couch, one holding a cat.
There are a group of people hanging out on a Friday night.
People sitting on a couch are not necessarily hanging out. They could be sitting on the couch in a waiting room. It does not follow that a group of people on a couch are there on a Friday night. People can sit together on a couch any day of the week and any time of day.
exists e2 e1 s1 x1 x2 x3 x4 x5 x6 x7.(a_topic(x1) & of(x1,x2) & on(e1,x4) & rel(x4,x5) & Theme(e2,x7) & Actor(e2,x6) & v_hold(e2) & n_cat(x7) & (x5 = x6) & n_thing(x5) & card_eq_1(x5) & n_couch(x4) & a_around(s1) & Manner(e1,s1) & Actor(e1,x3) & v_sit(e1) & (x2 = x3) & n_people(x2) & n_group(x1))
exists p1 x1 e1 s1 x2 x3 x4 x5 x6.((x1 = x2) & of(x2,x3) & on(e1,x5) & n_night(x5) & (x5 = x6) & ne_tim_friday(x6) & a_out(s1) & Manner(e1,s1) & Actor(e1,x4) & v_hang(e1) & (x3 = x4) & n_people(x3) & n_group(x2))