Yahoo submitted a complaint to the National Arbitration Forum ,requesting the disputed domain names,flickr.org and wallpaper-flickr.com to be transfered to them .
"Yahoo! Inc., is the owner of the FLICKR mark, registered with the United States Patent and Trademark Office and other governmental trademark authorities worldwide, including Japan. Complainant uses the FLICKR mark in connection with its corresponding domain name, flickr.com, which resolves to a photo-sharing website accessed by Internet users worldwide".
Moreover ,they proved the domain name has been registered and used in bad faith.
Therefore,the Panel decided the two domain names to be transfered to Yahoo.