Honda 's HR-V, based on the subcompact Fit, has sold over 20,000 copies in the U.S. after just a few months on the market, while General Motors ' ( NYSE:GM ) similarly sized Chevy Trax and Buick Encore have together sold about 70,000 so far in the U.S. in 2015.
Utilize the input text as a context reference, choose the right relationship between 'Buick' and 'General Motors' from the options.
Options: parent organization, manufacturer, brand, owned by