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.
In the context of the input sentence, determine the relationship between 'Alaska Airlines' and 'Alaska Air Group'.
Options: platform, member of, owned by, distribution format