text: import rdflib
  import os
  
  g = rdflib.Graph()
  
  turtle1 = g.parse("../data/level3/combo.ttl", format="turtle")
  
  json = turtle1.serialize(format='json-ld')
  nt = turtle1.serialize(format='nt')
  turtle2 = turtle1.serialize(format='turtle')
  
  #if os.path.exists('../uwlswd_vocabs/newspaperGenreList.json'):
  #    os.remove('../uwlswd_vocabs/newspaperGenreList.json')
  
  #if os.path.exists('../uwlswd_vocabs/newspaperGenreList.nt'):
  #    os.remove('../uwlswd_vocabs/newspaperGenreList.nt')
  
  file = open('../data/level3/combo2.json', 'wb')
  file.write(json)
  file.close()
  
  file = open('../data/level3/combo2.nt', 'wb')
  file.write(nt)
  file.close()
  
  file = open('../data/level3/combo2.ttl', 'wb')
  file.write(turtle2)
  file.close()