anchor.diff:  ,Skyline,trail,open,false,false,,Lower Spillway,more_difficult,false,false,open
   ,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,open,false,true,,Lower Timberline,easier,false,false,grooming
  +,Timberline,trail,closed,false,false,,Lower Timberline,easier,false,false,closed
   ,SuperQuad,trail,open,false,true,,Lower Tote Road,easier,false,false,grooming
  -,West Mountain,trail,closed,true,false,,Lower West Mountain,easier,false,false,closed
  +,West Mountain,trail,closed,false,false,,Lower West Mountain,easier,false,false,closed
   ,Whiffletree,trail,closed,false,false,,Lower Whiffletree,easier,false,false,closed
   ,West Mountain,trail,closed,true,false,,Lower Windrow,easier,false,false,closed
   ,Double Runner,trail,open,false,true,,Lower Winters Way,easier,false,false,grooming
  -,Double Runner,trail,open,false,false,,Middle Narrow Gauge,more_difficult,false,false,open
  +,Double Runner,trail,closed,false,false,,Middle Narrow Gauge,more_difficult,false,false,closed
   ,West Mountain,trail,closed,false,false,,Middle Scoot,easier,false,false,closed
   ,Skyline,trail,closed,false,false,,Midstation X-Cut,more_difficult,false,false,closed
   ,King Pine,trail,closed,false,false,,Misery Whip,extremely_difficult,false,false,closed
  
positive.code: ,Skyline,trail,open,false,true,,Sluice,more_difficult,false,false,grooming
  ,Skyline,trail,open,false,true,,Sluice Chute,most_difficult,false,false,grooming
  ,Skyline,trail,closed,false,true,,Sluice Headwall,most_difficult,false,false,grooming
  ,Base Area,trail,closed,true,false,,Snowbrook,easier,false,false,closed
  ,Sugarloaf Outdoor Center,trail,closed,,false,,Snowbrook Trail,more_difficult,false,false,closed
  ,Sugarloaf Outdoor Center,trail,closed,,false,,South Horn,most_difficult,false,false,closed
  ,Skyline,trail,closed,false,false,,Spillway X-Cut,most_difficult,false,false,closed
  
negative.code: ,SuperQuad,trail,open,false,true,,Bridle Chain,more_difficult,false,false,grooming
  ,Whiffletree,trail,closed,false,false,,Broccoli Garden Glade,most_difficult,false,false,closed
  ,Snowfields™ Summit,trail,closed,false,false,,Bubblecuffer Ext,extremely_difficult,false,false,closed
  ,West Mountain,trail,open,false,false,,Bucksaw X-Cut,easier,false,false,open
  ,Timberline,trail,closed,false,false,,Buckskin,more_difficult,false,false,closed
  ,Brackett Basin,trail,closed,,,,Can't Dog One,extremely_difficult,false,false,closed
  ,Brackett Basin,trail,closed,,,,Can't Dog Two,extremely_difficult,false,false,closed
  