PL/SQL :: Oracle 11g On Linux - Collapsing Rows

Oracle 11g on Linux. Previously submitted as Matching Rows.

I have the following table.
create table p
    (pid varchar2(10),
     first_name varchar2(10),
      last_name varchar2(10),
      type_code varchar2(5)     
      );
    
[Code]....

I used SELECT *
  FROM (SELECT pid,
               first_name,
               last_name,
               type_code,
               COUNT (*) OVER (PARTITION BY first_name, last_name, type_code)
                  cnt
          FROM p)
WHERE cnt > 1;

to get only the rows 1A and 3A

PID  FIRST_NAME    LAST_NAME     TYPE_CODE
1A   DENNIS               ALRIDGE          G5
3A   DENNIS               ALRIDGE          G5

but, a new requirement is to get it in the format:

PID1  FIRST_NAME1    LAST_NAME1     TYPE_CODE1                      PID2  FIRST_NAME2    LAST_NAME2     TYPE_CODE2
1A     DENNIS           ALRIDGE           G5                        3A    DENNIS         ALRIDGE          G5

I tried mod(rownum,2) != 0 to separate the row numbers, but the output is offset with null like:

PID1  FIRST_NAME1    LAST_NAME1     TYPE_CODE1                     PID2  FIRST_NAME2    LAST_NAME2     TYPE_CODE2
1A         DENNIS           ALRIDGE       G5           
                                                                        3A    DENNIS         ALRIDGE          G5

How do I  collapse the rows?