anchor.diff:  aerialway station,1,1,0,rating
   aeroway aerodrome,1,1,1,rating
   aeroway helipad,1,1,0,rating
  -amenity,1,1,0,rating
   amenity atm,1,1,1,rating
   amenity bank,1,1,0,quality service value_for_money
   amenity bar,1,1,1,value_for_money service atmosphere
  -amenity bench,1,1,0,rating
   amenity bicycle_rental,1,1,0,experience service value_for_money
   amenity bus_station,1,1,0,rating
   amenity cafe,1,1,1,cuisine service atmosphere
  
positive.code: historic monument,1,1,0,experience value_for_money
  historic museum,1,1,0,experience value_for_money
  historic ruins,1,1,0,experience value_for_money
  hwtag lit,1,1,0,rating
  internet_access,1,1,0,rating
  internet_access wlan,1,1,0,rating
  landuse cemetery,1,1,0,rating
  landuse forest,1,1,0,rating
  landuse industrial,1,1,0,rating
  landuse residential,1,1,0,rating
  landuse retail,1,1,1,assortment service value_for_money
  leisure garden,1,1,0,experience service value_for_money
  leisure golf_course,1,1,0,experience service value_for_money
  leisure nature_reserve,1,1,0,experience value_for_money
  
negative.code: amenity internet_cafe,1,1,0,quality service value_for_money
  amenity motorcycle_parking,1,1,1,rating
  amenity nursing_home,1,1,0,rating
  amenity shower,1,1,0,rating
  building,1,1,0,rating
  building train_station,1,1,0,rating
  historic archaeological_site,1,1,0,experience value_for_money
  