What is the relationship between 'Realogy' and 'Coldwell Banker' in the context of the input sentence.
Options: original broadcaster, subsidiary, member of, headquarters location

About Realogy Holdings Corp. Realogy Holdings Corp. ( RLGY ) is a global leader in residential real estate franchising and brokerage with many of the best-known industry brands including Better Homes and Gardens ® Real Estate, CENTURY 21 ® , Coldwell Banker ® , Coldwell Banker Commercial ® , The Corcoran Group ® , ERA®, Sotheby's International Realty ® and ZipRealty ® .
subsidiary