Amazon to challenge Walmart with new brick-and-mortar grocery stores
{"Image ImageDescription": "WEST HOLLYWOOD, CA - JULY 16:  A general view of atmosphere during the Amazon Prime Summer Soiree hosted by Erin Foster and Sara Foster at Sunset Towers on July 16, 2015 in West Hollywood, California.  (Photo by Rachel Murray/Getty Images for Amazon)", "Image Software": "Picasa", "Image Artist": "Rachel Murray", "Image Copyright": "2015 Getty Images", "Image ExifOffset": "364", "EXIF ExifVersion": "0220"}