A snowboarder in a green jacket catches some air.
the rocks were hard
Physical movements and snowboarding have no relevance to the environment and physical surroundings such as rocks being hard.
exists e1 s1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_catch(e1) & n_air(x3) & in(x1,x2) & n_jacket(x2) & a_green(s1) & Theme(s1,x2) & n_snowboarder(x1))
exists s1 x1.(n_rock(x1) & Theme(s1,x1) & a_hard(s1))