A little boy and girl riding their bikes down the sidewalk with training wheels on.
Two kids ride their unicycle.
A unicycle has one wheel while bikes have more than one.
exists e1 s1 s2 s3 x1 x2 x3 x4 x5 x6 x7.(n_sidewalk(x5) & a_topic(s1) & a_on(s3) & Manner(e1,s3) & down(e1,x5) & with(x5,x6) & n_wheel(x6) & of(x6,x7) & n_training(x7) & Theme(e1,x4) & Actor(e1,x3) & v_ride(e1) & n_bike(x4) & of(x4,x1) & n_thing(x1) & (s1 = x3) & n_girl(x2) & n_boy(x1) & subset_of(x2,s1) & subset_of(x1,s1) & a_little(s2) & Theme(s2,s1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_unicycle(x2) & of(x2,x1) & n_thing(x1) & n_kid(x1) & card_eq_2(x1))