Anchor: (per piece, delivery and stop), and the number of deliveries (stops) on a route.
Entailed: Delivery per stop and number of deliveries on route 
Contradiction: Total deliveries
Contradiction: The field is in a wide open rural space.
Contradiction: the student and teacher are laughing
Contradiction: The SAB said the study had higher measurement error than most studies.
Contradiction: There is a passeig called Vara del Rey which is a favourite spot to pass time.