A person in a red full body costume is riding a motorcycle.
A motorcycle is being ridden by a person a red full body costume.
A pers red full body costume.is also addressed as a person in red.
exists e1 s1 s2 x1 x2 x3 x4.(Theme(e1,x4) & Actor(e1,x1) & v_ride(e1) & n_motorcycle(x4) & in(x1,x2) & n_costume(x2) & of(x2,x3) & n_body(x3) & a_full(s2) & Theme(s2,x2) & a_red(s1) & Theme(s1,x2) & n_person(x1))
exists e1 x1.(all s2 x2 s1 x3.((n_costume(x2) & of(x2,x3) & n_body(x3) & a_full(s2) & Theme(s2,x2) & a_red(s1) & Theme(s1,x2)) -> exists x4.(Actor(e1,x4) & for(x4,x2) & n_person(x4))) & Theme(e1,x1) & v_ride(e1) & n_motorcycle(x1))