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  ______     ___     ______      ___      ______  
 /_   _//   / _ \\  |      \\   / _ \\   /_   _// 
 `-| |,-   | / \ || |  --  //  / //\ \\    | ||   
   | ||    | \_/ || |  --  \\ |  ___  ||  _| ||   
   |_||     \___//  |______// |_||  |_|| /__//    
   `-`'     `---`   `------`  `-`   `-`  `--`

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Text this: Understanding the usage of physical activity tracking devices