A couple of smiling little boys ride together in a plastic chair-swing, one on the other's lap.
The boys are playing.
A couple of smiling little boys are boys and together they are playing
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 e1 x1.(n_boy(x1) & Actor(e1,x1) & v_play(e1))