anchor.diff:      ;
   
   segment_management_clause
  -    : SEGMENT SPACE_KEYWORD MANAGEMENT (AUTO|MANUAL)
  +    : SEGMENT SPACE_KEYWORD MANAGEMENT (AUTO | MANUAL)
       ;
   
   flashback_mode_clause
  -    : FLASHBACK (ON|OFF)
  +    : FLASHBACK (ON | OFF)
       ;
   
   temporary_tablespace_clause
  
positive.code:     ;
  
  create_tablespace
      : CREATE (BIGFILE|SMALLFILE)? 
          ( permanent_tablespace_clause
          | temporary_tablespace_clause
          | undo_tablespace_clause
  
negative.code:     ;
  
  tablespace_group_clause
      : TABLESPACE GROUP (REGULAR_ID | CHAR_STRING)
      ;
  
  undo_tablespace_clause
  