anchor.diff:  ,Snowfields™ Summit,trail,closed,false,false,,Jagger,extremely_difficult,false,false,closed
   ,Whiffletree,trail,closed,false,false,,Jill Poke,more_difficult,false,false,closed
   ,SuperQuad,trail,closed,false,false,,Kickback,most_difficult,false,false,closed
  -,SuperQuad,trail,open,false,true,,Kings Landing,more_difficult,false,false,grooming
  +,SuperQuad,trail,closed,false,true,,Kings Landing,more_difficult,false,false,grooming
   ,Skyline,trail,closed,false,false,,Kurf Glade,most_difficult,false,false,closed
   ,Brackett Basin,trail,closed,,,,Little Androscoggin Glade,most_difficult,false,false,closed
   ,Brackett Basin,trail,closed,,,,Logging Road,more_difficult,false,false,closed
  
positive.code: ,Whiffletree,trail,closed,false,false,,Upper Springboard,more_difficult,false,false,closed
  ,Whiffletree,trail,closed,false,false,,Upper Stubs,easier,false,false,closed
  ,Timberline,trail,closed,false,false,,Upper Timberline,easier,false,false,closed
  ,West Mountain,trail,closed,false,false,,Upper West Mountain,easier,false,false,closed
  ,Whiffletree,trail,closed,false,false,,Upper Whiffletree,more_difficult,false,false,closed
  ,West Mountain,trail,closed,true,false,,Upper Windrow,more_difficult,false,false,closed
  ,Skyline,trail,closed,false,false,,Upper Winters Way,extremely_difficult,false,false,closed
  
negative.code: ,King Pine,trail,closed,false,false,,Old Winter's Way,more_difficult,false,false,closed
  ,SuperQuad,trail,open,false,true,,Peavy X-Cut,easier,false,false,grooming
  ,Double Runner,trail,closed,,false,,Picaroon,easier,false,false,closed
  ,Skyline,trail,closed,false,false,,Pick Pole,more_difficult,false,false,closed
  ,SuperQuad,trail,open,false,true,,Pinch,more_difficult,false,false,grooming
  ,Snowfields™ Summit,trail,closed,false,false,,Powder Keg,extremely_difficult,false,false,closed
  ,Sugarloaf Outdoor Center,trail,closed,,false,,Pretty Bog,easier,false,false,closed
  