[['name', 'public', 'intranet', 'extranet', 'personal sites', 'team sites', 'developer'], ['ibm connections', 'yes', 'yes', 'yes', 'yes', 'yes', 'yes'], ['ibm lotus domino', 'yes', 'yes', 'yes', 'no', 'yes', 'yes'], ['ibm lotus quickplace', 'yes', 'yes', 'yes', 'yes', 'yes', 'yes'], ['microsoft exchange server', 'yes', 'yes', 'yes', 'no', 'no', 'no'], ['microsoft office live communications server', 'no', 'yes', 'yes', 'yes', 'yes', 'no'], ['microsoft sharepoint', 'yes', 'yes', 'yes', 'yes', 'yes', 'yes'], ['microsoft team foundation server', 'no', 'yes', 'yes', 'no', 'yes', 'yes'], ['name', 'public', 'intranet', 'extranet', 'personal sites', 'team sites', 'developer']]
the only category that both Microsoft and Ibm have a no in is the Personal Site category
the only category that both [ENT] and [ENT] have a no in is the [ENT] category