anchor.diff:  Piero Sraffa,201
   Pierre Briant,224
   Pierre Capretz,21
  -Pierre Cartier,
  +Pierre Cartier,300
   Pierre Curie,144
   Pierre Dangeard,119
   Pierre Dansereau,252
  
positive.code: Oleksiy Kartunov,1
  Oleksiy Onyschenko,1
  Olga Arsenievna Oleinik,7
  Olga Bondareva,
  Olga Zolina,34
  Olga von Tauber,0
  Olin Sewall Jr. Pettingill,0
  
negative.code: Igor Aleksander,
  Igor Frenkel,96
  Igor Kon,156
  Igor Petrovich Ivanov,1
  Igor R. Shafarevich,83
  Igor Vasilyevich Kurchatov,0
  Igor Yegorov,21
  