A little boy in shorts and blue t-shirt runs on the grass.
boy on grass
Both subjects are on the grass
exists s1 s2 s3 x1 x2 x3 x4 x5.(n_grass(x5) & a_topic(x1) & in(x1,x2) & subset_of(x4,x2) & on(x4,x5) & n_run(x4) & a_t-shirt(s3) & Theme(s3,x4) & a_blue(s2) & Theme(s2,x4) & subset_of(x3,x2) & n_shorts(x3) & n_boy(x1) & a_little(s1) & Theme(s1,x1))
exists x1 x2.(a_topic(x1) & on(x1,x2) & n_grass(x2) & n_boy(x1))