A person in a green jacket and yellow pants is on a snowboard coming down a roof into the snow.
A person falling in the snow
One cannot be riding a snowboard down a roof while falling into the snow.
exists p1 s1 s2 x1 x2 x3 x6.(n_snow(x6) & exists e1 s3 x4 x5 x7.(on(x1,x4) & rel(e1,x7) & n_roof(x7) & into(e1,x6) & a_down(s3) & Manner(e1,s3) & Actor(e1,x5) & v_come(e1) & (x4 = x5) & n_snowboard(x4)) & in(x1,x2) & n_pants(x2) & a_yellow(s2) & Theme(s2,x2) & of(x2,x3) & n_jacket(x3) & a_green(s1) & Theme(s1,x2) & n_person(x1))
exists e1 x1 x2 x3.(n_snow(x3) & a_topic(x1) & in(e1,x3) & Actor(e1,x2) & v_fall(e1) & (x1 = x2) & n_person(x1))