Refer to the input text as context and select the correct relationship between 'al Qaeda' and 'Osama bin Laden' from the available options.
Options: distribution format, location of formation, founded by, developer

DUBAI, Aug 1 (Reuters) - A sister of former al Qaeda leader Osama bin Laden was killed along with her husband and mother when a private jet crashed in southern England on Friday, Saudi-owned al-Arabiya television reported on Saturday.
founded by