Utilize the input text as a context reference, choose the right relationship between Cigna and Health insurance from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

Health insurance is Cigna Corp.'s main business, but it also sells group disability and life coverage in the U.S., and it has a growing international segment that Anthem lacks.

Answer: product_or_material_produced