anchor.diff:  "Samsung", "Galaxy S III", "Phone"
   "Samsung", "Galaxy S Pro (Epic 4G)", "Phone"
   "Samsung", "Galaxy Note", "Phone"
  +"Samsung", "Galaxy Tab 7.0 Plus", "Tablet"
  +"Samsung", "Galaxy Tab 7.7, 10.1", "Tablet"
  +"Samsung", "Galaxy Tab 2 7.0, 8.9, 10.1", "Tablet"
   "Samsung", "Illusion", "Phone"
   "Samsung", "Infuse 4G", "Phone"
   "Samsung", "Nexus S", "Phone"
  
positive.code: "HTC", "EVO 4G, EVO Shift 4G", "Phone"
  "HTC", "EVO 4G LTE", "Phone"
  "HTC", "EVO Design 4G", "Phone"
  "HTC", "Incredible S", "Phone"
  "HTC", "Inspire 4G", "Phone"
  "HTC", "Jetstream LTE", "Phone"
  
negative.code: "HTC", "Sensation 4G", "Phone"
  "HTC", "Thunderbolt 4G", "Phone"
  "Huawei", "Impulse 4G", "Phone"
  "Huawei", "MediaPad 7", "Tablet"
  "Huawei", "Mercury", "Phone"
  "Kyocera", "M9300 (Echo)", "Phone"
  "LG", "G2X", "Phone"
  