OUFEAT ( featre, fetype, entys, nentys, ifail )
===============================================

  Output items in feature

    Can be called from the GO.

Receives:
  KI_tag_feature           *featre         --- feature

Returns:
  KI_cod_tyfe              *fetype         --- type-code of feature
  KI_tag_list_entity       *entys          --- list of entities in feature
 <KI_int_nitems>           *nentys         --- number of items in 'entys'
  KI_cod_error             *ifail          --- failure code


Description:
  The items in the feature are returned in the list 'entys'. If the feature
  is empty 'entys' is returned as an empty list and 'nentys' as 0.

  OUFEAT outputs all the entities in the feature irrespective of their type.
  The entities of a particular type may be obtained using IDCOEN.