People sitting around a bar conversing.
People are discussing politics at a disco.
The people could not be sitting around a bar and be at a disco simultaneously.
exists e1 x1 x2 x3 x4.(a_topic(x1) & around(e1,x3) & n_conversing(x3) & of(x3,x4) & n_bar(x4) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_people(x1))
exists e1 x1 x2 x3.(at(e1,x3) & n_disco(x3) & Theme(e1,x2) & Actor(e1,x1) & v_discuss(e1) & n_politics(x2) & n_people(x1))