People are sitting at two long tables, one behind the other, with beverage containers and papers.
People are sitting down at a small party.
Sitting at tables does not imply they are at a small party.
exists e1 s1 x1 x2 x3 x4 x5 x6 x7 x8.(n_other(x4) & with(e1,x5) & subset_of(x8,x5) & n_papers(x8) & subset_of(x6,x5) & n_container(x6) & of(x6,x7) & n_beverage(x7) & at(e1,x2) & rel(x2,x3) & behind(x3,x4) & n_thing(x3) & card_eq_1(x3) & n_table(x2) & a_long(s1) & Theme(s1,x2) & card_eq_2(x2) & Actor(e1,x1) & v_sit(e1) & n_people(x1))
exists e1 s1 s2 x1 x2.(at(e1,x2) & n_party(x2) & a_small(s2) & Theme(s2,x2) & a_down(s1) & Manner(e1,s1) & Actor(e1,x1) & v_sit(e1) & n_people(x1))