sveral young boys climbing out of the water on a concrete sidewalk
The boys are riding bikes.
The boys can't be riding bikes in the water.
exists e1 s1 s2 s3 x1 x2 x3 x4.(n_water(x3) & a_topic(x1) & on(e1,x4) & n_sidewalk(x4) & a_concrete(s3) & Theme(s3,x4) & of(e1,x3) & r_out(e1) & Actor(e1,x2) & v_climb(e1) & (x1 = x2) & n_boy(x1) & a_young(s2) & Theme(s2,x1) & a_sveral(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_boy(x1) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bike(x2))