Children play barefoot in the sand next to a rusting oil pipeline.
Children are building sand castles.
Building is not the only game to play in the sand.
exists e1 s1 x1 x2 x3 x4 x5.(n_sand(x3) & to(e1,x4) & n_pipeline(x4) & of(x4,x5) & n_oil(x5) & a_rusting(s1) & Theme(s1,x4) & r_next(e1) & in(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_barefoot(x2) & n_child(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_build(e1) & n_castle(x2) & of(x2,x3) & n_sand(x3) & n_child(x1))