WITH A AS (
    SELECT '' V5, '' V4, 'AAA' V1, '' V0 FROM DUAL
    UNION ALL
    SELECT '' V5, '' V4, 'BBB' V1, '' V0 FROM DUAL
    UNION ALL
    SELECT '' V5, '' V4, '' V1, 'CCC' V0 FROM DUAL
    UNION ALL
    SELECT 'DDD' V5, '' V4, '' V1, '' V0 FROM DUAL
    UNION ALL
    SELECT '' V5, 'EEE' V4, '' V1, '' V0 FROM DUAL
)

 
          
SELECT RN 
     , MIN(V5) V5
     , MIN(V4) V4
     , MIN(V1) V1
     , MIN(V0) V0
  FROM  ( SELECT A.*
      , LEAST ( ROW_NUMBER() OVER(ORDER BY V5 ) 
              , ROW_NUMBER() OVER(ORDER BY V4 )  
              , ROW_NUMBER() OVER(ORDER BY V1 ) 
              , ROW_NUMBER() OVER(ORDER BY V0 ) 
              ) RN
          FROM A )
GROUP BY RN
 ;

SELECT *
  FROM (SELECT ROW_NUMBER() OVER(PARTITION BY gb ORDER BY v) rn
             , gb
             , v
          FROM a
         UNPIVOT (v FOR gb IN (v5, v4, v1, v0))
        )
 PIVOT (MIN(v) FOR gb IN ('V5' v5, 'V4' v4, 'V1' v1, 'V0' v0))
;