anchor.diff:  ,,,,,,,,,,GRMN 26511 The Age of Goethe
   ,,,,,,,,,,GRMN 27212 Freud’s Interpretation of Dreams
   ,,,,,,,,,,GRMN 28411 Comparative Metrics
  -,,,,,,,,,,GRMN 28711 Nietzsche
   ,,,,,,,,,,GRMN 28711 Nietzsche
   ,,,,,,,,,,GRMN 29000 Major Works of Modernism
   ,,,,,,,,,,GRMN 29700 Reading and Research Course in German
  
positive.code: ,,,,,,,,,,PERS 30361 Samak-e 'Ayyar
  ,,,,,,,,,,PERS 30851 Introduction to Old Persian
  ,,,,,,,,,,PERS 30324 Muthnavi or Rumi-1
  ,,,,,,,,,,PERS 30324 Muthnavi or Rumi-1
  ,,,,,,,,,,PERS 30325 Muthnavi of Rumi-2
  ,,,,,,,,,,PERS 30325 Muthnavi of Rumi-2
  ,,,,,,,,,,PERS 30361 Samak-e 'Ayyar
  ,,,,,,,,,,PHIL 20100 Elementary Logic
  
negative.code: ,,,,,,,,,,ARAB 40101 Advanced Arabic Syntax I
  ,,,,,,,,,,ARAB 40102 Advanced Arabic Syntax II
  ,,,,,,,,,,ARAB 30349 Shi 'a Poetry
  ,,,,,,,,,,ARAM 10101 Biblical Aramaic
  ,,,,,,,,,,ARAM 10102 Old Aramaic Inscriptions
  ,,,,,,,,,,ARAM 10103 Imperial Aramaic
  