Two girls at a table with papers between them.
The girls are sitting at the table working on homework.
Two girls at a table with papers between them does not imply they are working on homework.
exists x1 x2 x3.(a_topic(x1) & with(x1,x3) & between(x3,x1) & n_thing(x1) & n_papers(x3) & at(x1,x2) & n_table(x2) & n_girl(x1) & card_eq_2(x1))
exists e2 e1 x1 x2 x3.(n_table(x2) & n_girl(x1) & for(e1,e2) & on(e2,x3) & n_homework(x3) & Actor(e2,x1) & v_work(e2) & at(e1,x2) & Actor(e1,x1) & v_sit(e1))