A group of people being served at a wine and food bar.
The people are at a bar.
A group of people means people are being served at bar implies they are at bar.
exists e1 x1 x2 x3 x4 x5 x6 x7.(a_topic(x1) & of(x1,x2) & at(e1,x4) & n_bar(x6) & of(x6,x7) & n_food(x7) & n_wine(x5) & subset_of(x6,x4) & subset_of(x5,x4) & Theme(e1,x3) & v_serve(e1) & (x2 = x3) & n_people(x2) & n_group(x1))
exists p1 x1.(n_people(x1) & exists x2.(at(x1,x2) & n_bar(x2)))