Determine if the relationship is nested.

        :type name: str
        :type relation: str

        :rtype: bool

def _is_nested(self, name, relation):
        """
        Determine if the relationship is nested.

        :type name: str
        :type relation: str

        :rtype: bool
        """
        dots = name.find(".")

        return dots and name.startswith(relation + ".")