anchor.diff:  ,Skyline,trail,closed,false,false,,Lower Spillway,more_difficult,false,false,closed
   ,Whiffletree,trail,closed,false,false,,Lower Springboard,more_difficult,false,false,closed
   ,Whiffletree,trail,closed,false,false,,Lower Stubs,easier,false,false,closed
  -,Timberline,trail,closed,false,false,,Lower Timberline,easier,false,false,closed
  +,Timberline,trail,closed,false,true,,Lower Timberline,easier,false,false,grooming
   ,SuperQuad,trail,open,false,true,,Lower Tote Road,easier,false,false,grooming
   ,West Mountain,trail,closed,false,false,,Lower West Mountain,easier,false,false,closed
   ,Whiffletree,trail,closed,false,false,,Lower Whiffletree,easier,false,false,closed
  
positive.code: ,King Pine,trail,closed,false,false,,Choker,most_difficult,false,false,closed
  ,Timberline,trail,closed,false,false,,Cinderhoe,more_difficult,false,false,closed
  ,Whiffletree,trail,closed,false,false,,Condo X-Cut,easier,false,false,closed
  ,Skyline,trail,closed,true,false,,Cribworks,extremely_difficult,false,false,closed
  ,Whiffletree,trail,closed,false,false,,Cross Haul,easier,false,false,closed
  ,SuperQuad,trail,open,false,false,,Double Bitter,most_difficult,false,false,open
  ,Timberline,trail,closed,false,false,,Dropline Glade,most_difficult,false,false,closed
  
negative.code: ,Skyline,trail,closed,false,false,,White Nitro,extremely_difficult,false,false,closed
  ,Snowfields™ Summit,trail,closed,false,false,,White Nitro Ext,extremely_difficult,false,false,closed
  ,King Pine,trail,closed,false,false,,Widowmaker,most_difficult,false,false,closed
  ,West Mountain,trail,closed,false,true,,Windrow Ext,easier,false,false,grooming
  ,Snowfields™ Summit,trail,closed,false,false,,Winters Way Ext,extremely_difficult,false,false,closed
  