What is the relationship between 'Amlin' and 'Insurance' in the context of the input sentence.
Options: stock exchange, distributed by, industry, developer

TOKYO, Sept 8 (Reuters) - MS&AD Insurance Group Holdings Inc said it is in talks to buy UK rival Amlin (LSE: AML.L - news ) , the fourth multi-billion deal in as many months by Japanese insurers aggressively expanding overseas.
industry