TOKYO, Sept 8 (Reuters) - MS&AD Insurance Group Holdings Inc on Tuesday said it has agreed to buy U.K. rival Amlin (Stuttgart: 4A8A.SG - news ) PLC for 3.47 billion pounds ($5.34 billion), in the fourth major international deal in as many months by Japanese insurers expanding overseas.
Utilize the input text as a context reference, choose the right relationship between 'Amlin' and 'Insurance' from the options.
Options: industry, chairperson, subsidiary, distribution format