Map functions can be and often are defined in terms of a fold such as foldr, which means one can do a map-fold fusion: foldr f z. map g is equivalent to foldr (f. g) z.
The Medusa Field is a deepwater development located in Mississippi Canyon Blocks 538 and 582, 100 miles (161 kilometers) south of New Orleans, La. The field is located in 2,200 feet of water (671 meters) and can produce up to 40,000 bopd. Murphy Oil Corp operates the field, holding a 60% working interest.
Until one day Medusa and her friends went to the Parthenon. It was Medusa's first time going to the Parthenon. The Parthenon was the biggest temple in Greece. In the Parthenon was the goddess of wisdom and that was Athena. There was statues of most of the gods and goddesses in the Greek culture. All the people who went there obeyed Athena, all except Medusa.