Two people having a picnic by the shore.
There is a picnic by the shore.
people having a picnic by the shore means there is a picnic by the shore
exists e1 x1 x2 x3 x4.(n_shore(x4) & a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_have(e1) & by(x3,x4) & n_picnic(x3) & (x1 = x2) & n_people(x1) & card_eq_2(x1))
exists p1 x1 x3.(n_shore(x3) & exists x2.((x1 = x2) & by(x2,x3) & n_picnic(x2)))