a group sitting at a table discussing a subject.
peoples are tested by group discussion.
group discussing a subject does not imply tested by group discussion.
exists e1 e2 x1 x2 x3 x4 x5.(a_topic(x1) & at(e1,x3) & Theme(e2,x5) & Actor(e2,x4) & v_discuss(e2) & n_subject(x5) & (x3 = x4) & n_table(x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_group(x1))
exists e1 x1 x2 x3.(Actor(e1,x2) & n_discussion(x2) & of(x2,x3) & n_group(x3) & Theme(e1,x1) & v_test(e1) & n_people(x1))