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

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Text this: Sigma Chromatic Number of the Middle Graph of Some General Families of Trees of Height 2