USE CLOSURE PROPERTIES!!

6 pts -Show that the language L = {rSy : x,yin(a,b)',x a substring of y} is not context free *using closure properties only*. Use the fact that CFLs are closed under: union, intersection WITH REGULAR LANGUAGES (not other CFLs), concatenation, asterate (star operation), homomorphism, and inverse ho- momorphism. You may also use the fact that the following languages are not context free: a" bann > 0 > 0