anchor.diff:  [source, cypher]
   ----
   MATCH ()-->(vehicle:Car)-->(manufacturer:Company)
  -WHERE manufacturer.founded_year < 2000
  +WHERE manufacturer.foundedYear < 2000
   RETURN vehicle.mileage
   ----
   +
  
positive.code: [source, cypher]
  ----
  MATCH (:Person)-->(vehicle:Car)-->(manufacturer:Company)
  WHERE manufacturer.founded_year < 2000
  RETURN vehicle.mileage
  ----
  +
  
negative.code: [source, cypher]
  ----
  MATCH (manufacturer:Company)<--(vehicle:Car)<--()
  WHERE manufacturer.foundedYear < 2000
  RETURN vehicle.mileage
  ----
  
  