title: LL(2) language that is not LL(1)
body: <p>In order to further my understanding of parsers and grammars, I'm searching for a (hopefully simple) example of a <em>language</em> that is LL(2) but not LL(1). That is, a language that can be generated by an LL(2) grammar but not by any LL(1) grammar.</p>
  
  <p>Are there useful languages in that class ? I.e could we imagine a computer language that is LL(2) but not LL(1) ?</p>