Lots of people sitting at a table with green umbrellas on it.
The people are drinking cocktails.
People can sit at a table without drinking cocktails.
exists e1 s1 x1 x2 x3 x4 x5.(a_topic(x1) & of(x1,x2) & on(e1,x1) & n_thing(x1) & with(e1,x5) & n_umbrella(x5) & a_green(s1) & Theme(s1,x5) & at(e1,x4) & n_table(x4) & Actor(e1,x3) & v_sit(e1) & (x2 = x3) & n_people(x2) & n_lot(x1))
exists e1 x1 x2.(n_people(x1) & Theme(e1,x2) & Actor(e1,x1) & v_drink(e1) & n_cocktail(x2))