Utilize the input text as a context reference, choose the right relationship between Lufthansa and Austrian Airlines 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.

Lufthansa Passenger Airlines, SWISS and Austrian Airlines are network carriers serving the global market and all passenger segments.

Answer: subsidiary