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

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Text this: Considering circuit observability don't cares in CNF satisfiability