premise: Around Jalan d'Albuquerque and Dataran Portugis (Portuguese Square), the houses look no different from those in the rest of Melaka, but you may hear snatches of Cristao, a 16th-century Portuguese dialect, and mothers calling out to Afonso, Luis, or Filomena. 
hypothesis: The area around Jalan d'Albuquerque and Dataran Portugis is known as Portguese Square.