The bride and groom are getting served a drink at their wedding reception.
There is a wedding party.
A bride and groom would be at their wedding reception following their wedding.  There would be drinks served at a wedding party.
exists e1 p1 x1 x2 x3 x5 x6.(n_reception(x5) & of(x5,x6) & n_wedding(x6) & of(x5,x2) & n_thing(x2) & n_groom(x3) & n_bride(x2) & subset_of(x3,x1) & subset_of(x2,x1) & exists e2 x4.(at(e2,x5) & Theme(e2,x4) & Actor(e2,x1) & v_serve(e2) & n_drink(x4)) & Topic(e1,p1) & Actor(e1,x1) & v_get(e1))
exists p1 x1 e1 x2.((x1 = x2) & n_party(x2) & Actor(e1,x2) & v_wed(e1))