A person in a red shirt on a skateboard.
Skateboard ridden by a person in red shirt
''A person in a red shirt on a skateboard. '' is  rephrasing  of '' Skateboard ridden by a person in red shirt ''
exists s1 x1 x2 x3.(a_topic(x1) & in(x1,x2) & on(x2,x3) & n_skateboard(x3) & n_shirt(x2) & a_red(s1) & Theme(s1,x2) & n_person(x1))
exists s1 x1 x2 x3 x4.(a_topic(x1) & by(x1,x3) & in(x3,x4) & n_shirt(x4) & a_red(s1) & Theme(s1,x4) & n_person(x3) & n_ridden(x1) & (x1 = x2) & ne_nam_skateboard(x2))