Multiple blue umbrella tables where people are eating.
People are drinking beer at home.
People cannot be eating and drinking beer at home at the same time.
exists p1 s1 x1 x2 x3.(a_topic(x1) & exists e1 x4.(Actor(e1,x4) & v_eat(e1) & n_people(x4)) & where(x1,p1) & n_table(x1) & of(x1,x3) & n_umbrella(x3) & a_blue(s1) & Theme(s1,x1) & (x1 = x2) & ne_nam_multiple(x2))
exists e1 x1 x2 x3.(at(e1,x3) & n_home(x3) & Theme(e1,x2) & Actor(e1,x1) & v_drink(e1) & n_beer(x2) & n_people(x1))