A person in a red full body costume is riding a motorcycle.
A motorcycle is being ridden by a person wearing a red full body costume while in a parade.
That the person is in a red costume riding a motorcycle does not necessarily mean he/she is in a parade.
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 e2 s1 s2 x1 x2 x3 x4 x5 x6.(Actor(e1,x2) & in(e2,x6) & n_parade(x6) & r_while(e2) & Theme(e2,x4) & Actor(e2,x3) & v_wear(e2) & n_costume(x4) & of(x4,x5) & n_body(x5) & a_full(s2) & Theme(s2,x4) & a_red(s1) & Theme(s1,x4) & (x2 = x3) & n_person(x2) & Theme(e1,x1) & v_ride(e1) & n_motorcycle(x1))