default -> -1   (Coverage 200, error 4.5%, error without exceptions 50.0%)
   unless GATGAG -> 1   (Coverage 96, error 3.1%, error without exceptions 45.8%)
      unless AAATTT -> -1   (Coverage 43, error 4.7%)
      or AAGGG -> -1   (Coverage 4, error 0.0%)
   or AAATTT -> 1   (Coverage 101, error 5.9%, error without exceptions 50.5%)
      unless GATGAG -> -1   (Coverage 43, error 4.7%)
      or CGAGG -> -1   (Coverage 5, error 0.0%)
      or ACACC -> -1   (Coverage 10, error 30.0%)
      or ACGGCC -> -1   (Coverage 3, error 0.0%)
