Someone skiing in the woods while wearing a blue and red snowsuit.
A person in red and blue is using skis.
"In red and blue" is the same as "while wearing blue and red".
(x)
exists e1 s1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_use(e1) & n_ski(x3) & in(x1,x2) & n_blue(x2) & a_red(s1) & Theme(s1,x2) & n_person(x1))