text: class NumeratorNotFoundError(Exception):
      pass
  
  
  class DenominatorNotFoundError(Exception):
      pass
  
  
  class ExtraLeftOrMissingRightError(Exception):
      pass
  
  
  class MissingSuperScriptOrSubscriptError(Exception):
      pass
  
  
  class DoubleSubscriptsError(Exception):
      pass
  
  
  class DoubleSuperscriptsError(Exception):
      pass
  
  
  class NoAvailableTokensError(Exception):
      pass
  
  
  class InvalidStyleForGenfracError(Exception):
      pass
  
  
  class MissingEndError(Exception):
      pass
  
  
  class InvalidAlignmentError(Exception):
      pass
  
  
  class InvalidWidthError(Exception):
      pass
  