The snowboarder crashes down the snow covered mountain.
A man having a bad day.
A snowboard crash does not imply that a person is having a bad day.
exists e1 e2 s1 x1 x2 x3.(n_mountain(x2) & Theme(e1,x2) & v_cover(e1) & of(x2,x3) & n_snow(x3) & n_snowboarder(x1) & a_down(s1) & Manner(e2,s1) & Theme(e2,x2) & Actor(e2,x1) & v_crash(e2))
exists e1 s1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_have(e1) & n_day(x3) & a_bad(s1) & Theme(s1,x3) & (x1 = x2) & n_man(x1))