Arborescence ============ .. code-block:: text sd_listr8 (k19) ::= record ♦'.BINT' : S V R8 ♦'.LPAS' : S V R8 ♦'.NBPA' : S V I ♦'.VALE' : S V R8 sd_listis (k19) ::= record ♦'.BINT' : S V I ♦'.LPAS' : S V I ♦'.NBPA' : S V I ♦'.VALE' : S V I