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                                                                    Exhibit 3.55

                                    DELAWARE
                                                PAGE 1

                                 THE FIRST STATE

     I, HARRIET SMITH WINDSOR, SECRETARY OF STATE OF THE STATE OF DELAWARE, DO
HEREBY CERTIFY THE ATTACHED ARE TRUE AND CORRECT COPIES OF ALL DOCUMENTS ON FILE
OF "PJC MANSFIELD REALTY LLC" AS RECEIVED AND FILED IN THIS OFFICE.

     THE FOLLOWING DOCUMENTS HAVE BEEN CERTIFIED:

     CERTIFICATE OF FORMATION, FILED THE EIGHTH DAY OF JANUARY, A.D. 2002, AT 9
O'CLOCK A.M.

     CERTIFICATE OF AMENDMENT, FILED THE TWENTY-SEVENTH DAY OF MAY, A.D. 2003,
AT 3:50 O'CLOCK P.M.

     AND I DO HEREBY FURTHER CERTIFY THAT THE AFORESAID CERTIFICATES ARE THE
ONLY CERTIFICATES ON RECORD OF THE AFORESAID LIMITED LIABILITY COMPANY.

                                       /s/ Harriet Smith Windsor
                                       -----------------------------------------
                                       Harriet Smith Windsor, Secretary of State
[SEAL]
3477742 8100H                            AUTHENTICATION: 3256746

040547339                                         DATE: 07-27-04

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                                                          STATE OF DELAWARE
                                                         SECRETARY OF STATE
                                                      DIVISION OF CORPORATIONS
                                                      FILED 09:00 AM 01/08/2002
                                                         020014222 - 3477742

                            CERTIFICATE OF FORMATION

                                       OF

                            PJC MANSFIELD REALTY LLC

     This Certificate of Formation of PJC MANSFIELD REALTY LLC (the "COMPANY"),
dated as of January 8, 2002, is being duly executed and filed by the
undersigned, as authorized person, to form a limited liability company under the
Delaware Limited Liability Company Act (6 DEL. C. Sec. 18-101, ET SEQ.).

     FIRST. The name of the limited liability company formed hereby is PJC
Mansfield Realty LLC.

     SECOND. The address of the registered office in the State of Delaware is
2711 Centerville Road, Suite 400, Wilmington, New Castle County, Delaware 19808.
The name of its Registered Agent at such address is Corporation Service Company.

     IN WITNESS WHEREOF, the undersigned has executed this Certificate of
Formation as of the date first above written.

                                       /s/ Juliannie M. Ells
                                       -------------------------------------
                                       Juliannie M. Ells, Authorized Person

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                                                       STATE OF DELAWARE
                                                       SECRETARY OF STATE
                                                    DIVISION OF CORPORATIONS
                                                   DELIVERED 05:03 PM 05/27/2003
                                                     FILED 03:50 PM 05/27/2003
                                                    SRV 030343873 - 3477742 FILE

                            CERTIFICATE OF AMENDMENT

                                       OF

                            CERTIFICATE OF FORMATION

                                       OF

                            PJC MANSFIELD REALTY LLC

                        PURSUANT TO SECTION 18-202 OF THE
                     DELAWARE LIMITED LIABILITY COMPANY ACT

                                     * * * *

1)   The name of the Limited Liability Company is PJC Mansfield Realty LLC.

2)   The Certificate of Amendment is hereby amended to change Article "2" of the
     Certificate of Formation to read as follows:

     "2. The address of the registered office in the State of Delaware is 615
     South DuPont Highway, in the City of Dover, County of Kent, 19901. The name
     of its registered agent at such address is NATIONAL CORPORATE RESEARCH,
     LTD."

     The undersigned, an authorized person of the limited liability company,
executes this Certificate of Amendment on May 27, 2003.

                                       /s/Randy Wyrofsfky
                                       --------------------------
                                       Authorized Person