Two children are playing on a bicycle.
There are young people.
children almost the same as  young people.
exists e1 x1 x2.(on(e1,x2) & n_bicycle(x2) & Actor(e1,x1) & v_play(e1) & n_child(x1) & card_eq_2(x1))
exists p1 x1 s1 x2.((x1 = x2) & n_people(x2) & a_young(s1) & Theme(s1,x2))