In this May 3, 2015, file photo, former first lady Barbara Bush takes photos with her cell phone before the Seattle Mariners take on the Houston Astros in a baseball game in Houston, Texas. Bush is promoting literacy on her 90th birthday by lending her backing to a $7 million challenge by X Prize and Dollar General. They’re challenging developers to create a mobile app to help improve adult literacy skills. (AP Photo/George Bridges, File)
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