Given the question: - years active is 2004 -- 2006    - past members is ai kago nozomi tsuji    - caption is w , 2005 ai kago and nozomi tsuji    - origin is tokyo , japan    - label is zetima    - genre is pop      - alias is double you , double u      - background is group_or_band    - image is w -lrb- double you -rrb- . jpg    - associated acts is morning musume , tanpopo , minimoni    Given the details above, guess who could this information be about.
The answer is:
w -lrb- group -rrb-