original_string: protected function _parseRelation($relation)
      {
          $scope = null;
          if (strpos($relation, ':') !== false) {
              list($relation, $scope) = explode(':', $relation);
          }
  
          return [$relation, $scope];
      }
code: protected function _parseRelation($relation)
      {
          $scope = null;
          if (strpos($relation, ':') !== false) {
              list($relation, $scope) = explode(':', $relation);
          }
  
          return [$relation, $scope];
      }
code_tokens: protected function _parseRelation ( $ relation ) { $ scope = null ; if ( strpos ( $ relation , ':' ) !== false ) { list ( $ relation , $ scope ) = explode ( ':' , $ relation ) ; } return [ $ relation , $ scope ] ; }
docstring: Parse relation string to extract relation name and optional scope
  
  @param $relation
  
  @return array [relation name, scope name]
docstring_tokens: Parse relation string to extract relation name and optional scope