A little boy in red flowered shorts is sitting on a shovel.
A boy is on Mars.
Shovel and Mars are different.
exists e1 s1 s2 s3 x1 x2 x3.(on(e1,x3) & n_shovel(x3) & Actor(e1,x1) & v_sit(e1) & in(x1,x2) & n_shorts(x2) & a_flowered(s3) & Theme(s3,x2) & a_red(s2) & Theme(s2,x2) & n_boy(x1) & a_little(s1) & Theme(s1,x1))
exists p1 x1 x2.(ne_geo_mars(x2) & on(x1,x2) & n_boy(x1))