CFG of Language of all even and odd length palindromes.
Strings of the language
 a
 b
 aba
 abba
 bbbb
 baab
 baaaab
 abbbba
 aaaa
 bbbb and many more strings.
Context Free Grammar
S → aSa  bSb  a  b  ε

More Examples of CFG
 Intro to Context Free Grammar with 12 Examples
 CFG of Language of all even and odd length palindromes
 Context Free Grammar CFG for language of all even length strings
 CFG for the language of all non Palindromes
 CFG for strings with unequal numbers of a and b
 CFG of odd Length strings {w  the length of w is odd}
 CFG of Language contains at least three 1’s or three a’s {w  w contains at least three 1’s}
 CFG for the language L = 0^{n}1^{n} where n>=1
 CFG for the language L = 0^{n}1^{2n} where n>=1
 Write a CFG for the language L = 0^{n}1^{4n} where n>=1