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 tutorial does not specify if the directions are for pork or beef ribs. 
I think it tricked the system because I introduced an outside concept that was still true.  My statement was true because the directions do not specify what type of ribs the directions are for. 
( z1 specify :polarity - :ARG0 ( z2 tutorial ) :ARG1 ( z3 direction :topic ( z4 or :op ( z5 pork ) :op ( z6 rib :mod ( z7 beef ) ) ) ) )