old_contents: class Cquotation:
      '''
      This class encodes source and quotation
      '''
  
      def __init__(self, sip):
          '''
          Constructor for quotations object
          '''
          self.sip = sip
          self.span = []
          self.string = ''
          self.beginOffset = ''
          self.endOffset = ''
          self.source = ''
          self.addressee = ''
          self.topic = ''
  
      def set_span(self, span):
  
          self.span = span
  
      def get_span(self):
  
          return self.span
  
      def set_string(self, mystring):
  
          self.string = mystring
  
      def get_string(self):
  
          return self.string
  
      def set_begin_offset(self, boffset):
  
          self.beginOffset = boffset
  
      def get_begin_offset(self):
  
          return self.beginOffset
  
      def set_end_offset(self, eoffset):
          self.endOffset = eoffset
  
      def get_end_offset(self):
          return self.endOffset
  
      def set_source(self, source):
          self.source = source
  
      def get_source(self):
          return self.source
  
      def set_addressee(self, addressee):
          self.addressee = addressee
  
      def get_addressee(self):
          return self.addressee
  
      def set_topic(self, topic):
          self.topic = topic
  
      def get_topic(self):
          return self.topic
  
new_contents: class Cquotation:
      '''
      This class encodes source and quotation
      '''
  
      def __init__(self, sip):
          '''
          Constructor for quotations object
          '''
          self.sip = sip
          self.span = None
          self.string = None
          self.beginOffset = None
          self.endOffset = None
          self.source = None
          self.addressee = None
          self.topic = None
  
      def set_span(self, span):
  
          self.span = span
  
      def get_span(self):
  
          return self.span
  
      def set_string(self, mystring):
  
          self.string = mystring
  
      def get_string(self):
  
          return self.string
  
      def set_begin_offset(self, boffset):
  
          self.beginOffset = boffset
  
      def get_begin_offset(self):
  
          return self.beginOffset
  
      def set_end_offset(self, eoffset):
          self.endOffset = eoffset
  
      def get_end_offset(self):
          return self.endOffset
  
      def set_source(self, source):
          self.source = source
  
      def get_source(self):
          return self.source
  
      def set_addressee(self, addressee):
          self.addressee = addressee
  
      def get_addressee(self):
          return self.addressee
  
      def set_topic(self, topic):
          self.topic = topic
  
      def get_topic(self):
          return self.topic
  
subject: Fix `Cquotation` defaults.