A boy in an orange shirt plays on a large drainpipe with several other children in a sandy area.
A boy stands on a drainage pipe at the beach.
Just because a boy stands in a sandy area is not necessarily at the beach.
exists e1 s1 s2 s3 x1 x2 x3 x4 x5 x6 x7.(n_child(x6) & on(e1,x4) & with(x4,x5) & in(x5,x7) & n_area(x7) & a_sandy(s3) & Theme(s3,x7) & -(x5 = x6) & n_child(x5) & a_several(s2) & Theme(s2,x5) & n_drainpipe(x4) & a_large(s1) & Theme(s1,x4) & Actor(e1,x1) & v_play(e1) & in(x1,x2) & n_shirt(x2) & of(x2,x3) & n_orange(x3) & n_boy(x1))
exists e1 x1 x2 x3 x4.(n_beach(x4) & on(e1,x2) & at(x2,x4) & n_pipe(x2) & of(x2,x3) & n_drainage(x3) & Actor(e1,x1) & v_stand(e1) & n_boy(x1))