Facetten-Thesaurus-Begriff
        engl.: Subject added entry - faceted topical terms
               
               
               
               
MARC21       654     Subject Added Entry--Faceted Topical Terms (R)
  Subfields: 
             $a   Focus term
             $b   Non-focus term (R)
             $c   Facet/hierarchy designation (R)
             $v   Form subdivision (R) [NEW]
             $y   Chronological subdivision (R)
             $z   Geographic subdivision (R)
             $2   Source of heading or term
             $3   Material specified

 Indic/etc.: 1st: Level of subject [CHANGES]
             # No information provided
             0 No level specified
             1 Primary
             2 Secondary
             2nd: Undefined; contains a blank (#)