anchor.diff:  Nevada,Pershing,Drive Thru,To Roseville
   Nevada,Churchill,Drive Thru,To Roseville
   Nevada,Storey,Drive Thru,To Roseville
  -Nevada,Washoe,Visited,Reno/To Roseville
  +Nevada,Washoe,Drive Thru,To Roseville
   California,San Bernardino,Drive Thru,Six Flags/Knoxberry Park trip
   California,Orange,Visited,Six Flags/Knoxberry Park trip
   California,Los Angeles,Visited,Six Flags/Knoxberry Park trip
  
positive.code: Connecticut,,Visited,Actuarial Forum
  Indianapolis,Marion,Drive Thru,Activate
  Indianapolis,Hamilton,Visited,Activate
  
  
negative.code: Utah,Iron,Drive Thru,To St. George
  Utah,Washington,Visited,St. George
  Utah,San Juan,Drive Thru,
  Utah,Rich,Drive Thru,Star Valley/Jackson Hole
  Wyoming,Uinta,Drive Thru,Evanston
  Wyoming,Lincoln,Visited,Star Valley
  Wyoming,Teton,Visited,Jackson Hole
  Wyoming,Park,Visited,Yellowstone
  Wyoming,Sweetwater,Drive Thru,To Colorado
  Wyoming,Carbon,Drive Thru,To Colorado
  Wyoming,Albany,Drive Thru,To Colorado
  Wyoming,Laramie,Drive Thru,To Colorado
  Arizona,Mohave,Drive Thru,To California
  Arizona,Yavapai,Drive Thru,To Phoenix
  Arizona,Maricopa,Visited,Phoenix
  