Utilize the input text as a context reference, choose the right relationship between Alaska Airlines and Alaska Air Group 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.

Alaska Air Group , parent of Alaska Airlines and Horizon Air, posted second-quarter GAAP net income of $234 million, up 41.8% year-over-year (YOY) from net income of $165 million in the 2014 June quarter.

Answer: parent_organization