Two people sitting under a tree picking a green vegetable.
The people are standing by a tree.
standing is not sitting.
exists e1 e2 s1 x1 x2 x3 x4 x5.(a_topic(x1) & under(e1,x3) & Theme(e2,x5) & Actor(e2,x4) & v_pick(e2) & n_vegetable(x5) & a_green(s1) & Theme(s1,x5) & (x3 = x4) & n_tree(x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_people(x1) & card_eq_2(x1))
exists e1 x1 x2.(n_people(x1) & by(e1,x2) & n_tree(x2) & Actor(e1,x1) & v_stand(e1))