A couple of smiling little boys ride together in a plastic chair-swing, one on the other's lap.
The boys are brothers.
The boys that's riding together could be friends instead of brothers.
exists e1 e2 s1 s2 x1 x2 x3 x4 x5 x6 x7 x8.(n_lap(x8) & of(x8,x7) & n_other(x7) & in(e2,x4) & rel(x4,x6) & on(x6,x8) & n_thing(x6) & card_eq_1(x6) & n_chair-swing(x4) & of(x4,x5) & n_plastic(x5) & a_together(s2) & Manner(e2,s2) & Actor(e2,x1) & v_ride(e2) & Theme(e1,x3) & Actor(e1,x2) & v_smile(e1) & n_boy(x3) & a_little(s1) & Theme(s1,x3) & (x1 = x2) & n_couple(x1))
exists p1 x1.(n_boy(x1) & exists x2.((x1 = x2) & n_brother(x2)))