CREATE -+---------------+-+-----------+---+
          +-> OR REPLACE -+ +-> PUBLIC -+   |
   +------------------ <--------------------+
   +-> SYNONYM <synonym-name> FOR -+----------------+-+
                                   +-> object-type -+ |
   +---------------------- <--------------------------+
   +-> <object-name> -+-----------------------------------------+->
                      +-> COMMENT IS -+-> ' <quoted-string> ' -++
                                      +--------- / <-----------+

  object-type =

  -+-> DOMAIN ----+->
   +-> FUNCTION --+
   +-> MODULE ----+
   +-> PROCEDURE -+
   +-> SEQUENCE --+
   +-> SYNONYM ---+
   +-> TABLE -----+
   +-> VIEW ------+