Determine whether or not the following languages arc context-free. L = {a^nww^Ran: ngreaterthanorequalto0, we {a, b}*}. L = {a^nb^ia"b^i:n greaterthanorequalto0, j greaterthanorequalto0}. L = {a^nb^ja, b^n: ngreaterthanorequalto0, j greaterthanorequalto0}. L = {a^nb^ia^kb^l: n+j lessthanorequalto k+l}. L = {a^nb^ia^kb^l: n lessthanorequalto k, j lessthanorequalto 1}