Given the input sentence, please extract the subject and object containing a certain relation in the sentence according to the following relation types, in the format of "relation1: word1, word2; relation2: word3, word4". Relations include: 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.

Thursday, July 23, 2015 11:32AM IST (6:02AM GMT) (BW)(VA-HILTON-WORLDWIDE) Curio – A Collection by Hilton Celebrates Brand’s First Latin American Hotel with Opening of Anselmo Buenos Aires Hilton Worldwide Opens Historic Boutique Luxury Hotel in Buenos Aires Buenos Aires, Argentina and Mclean, Va., United States Offering the perfect blend of modern luxury and storied history, Anselmo Buenos Aires joined Curio – A Collection by Hilton .

Answer: product_or_material_produced: Hilton Worldwide, Hotel