A skateboarder in a red shirt.
Someone with a skateboard is wearing red clothing.
A skateboarder is someone with a skateboard. A red shirt is red clothing.
exists s1 x1 x2.(a_topic(x1) & in(x1,x2) & n_shirt(x2) & a_red(s1) & Theme(s1,x2) & n_skateboarder(x1))
exists e1 s1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_wear(e1) & n_clothing(x3) & a_red(s1) & Theme(s1,x3) & with(x1,x2) & n_skateboard(x2) & n_person(x1))