How to cook ribs in the oven<br>Prepare the ribs. Remove ribs from the packaging and pull off the membrane, which is usually attached to the underside of the rib cage. Combine all dry ingredients in a medium bowl.
The membrane is usually attached to the underside of the rib cage. 
( z1 attach :ARG1 ( z2 membrane ) :ARG2 ( z3 underside :part-of ( z4 cage :mod ( z5 rib ) ) ) :mod ( z6 usual ) )