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  ____      _____   __    __     ___     ______   
 |  _ \\   |  ___|| \ \\ / //   / _ \\  |      \\ 
 | |_| ||  | ||__    \ \/ //   | / \ || |  --  // 
 | .  //   | ||__     \  //    | \_/ || |  --  \\ 
 |_|\_\\   |_____||    \//      \___//  |______// 
 `-` --`   `-----`      `       `---`   `------`

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Text this: Occupant sensing in buildings : methods for occupant number, location and activity