code: def get_next_relationships(self, n=None):
          
          if n > self.available():
              # !!! This is not quite as specified (see method docs) !!!
              raise IllegalState('not enough elements available in this list')
          else:
              next_list = []
              x = 0
              while x < n:
                  try:
                      next_list.append(next(self))
                  except Exception:  # Need to specify exceptions here!
                      raise  # OperationFailed()
                  x = x + 1
              return next_list
docs: Gets the next set of ``Relationships`` elements in this list.
  
          The specified amount must be less than or equal to the return
          from ``available()``.
  
          arg:    n (cardinal): the number of ``Relationship`` elements
                  requested which must be less than or equal to
                  ``available()``
          return: (osid.relationship.Relationship) - an array of
                  ``Relationship`` elements.The length of the array is
                  less than or equal to the number specified.
          raise:  IllegalState - no more elements available in this list
          raise:  OperationFailed - unable to complete request
          *compliance: mandatory -- This method must be implemented.*