Three people having a picnic under two trees.
They are inside
Trees do not grow inside.
exists e1 x1 x2 x3 x4.(a_topic(x1) & under(e1,x4) & n_tree(x4) & card_eq_2(x4) & Theme(e1,x3) & Actor(e1,x2) & v_have(e1) & n_picnic(x3) & (x1 = x2) & n_people(x1) & card_eq_3(x1))
exists s1 s2 x1.(n_thing(x1) & a_inside(s2) & Manner(s1,s2) & Theme(s1,x1) & a_event(s1))