Given the question: Information:  - A municipality is usually a single urban administrative division having corporate status and powers of self-government or jurisdiction as granted by national and state laws, to which it is subordinate. It is to be distinguished from the county, which may encompass rural territory and/or numerous small communities such as towns, villages and hamlets. The term "municipality" may also mean the governing or ruling body of a given municipality. A municipality is a general-purpose administrative subdivision, as opposed to a special-purpose district. The term is derived from French "municipalité" and Latin "municipalis".  - Spain, officially the Kingdom of Spain, is a sovereign state largely located on the Iberian Peninsula in southwestern Europe, with two large archipelagos, the Balearic Islands in the Mediterranean Sea and the Canary Islands off the North African Atlantic coast, two cities Ceuta and Melilla in the North African mainland and several small islands in the Alboran Sea near the Moroccan coast. Its mainland is bordered to the south and east by the Mediterranean Sea except for a small land boundary with Gibraltar; to the north and northeast by France, Andorra, and the Bay of Biscay; and to the west and northwest by Portugal and the Atlantic Ocean. It is the only European country to have a border with an African country (Morocco) and its African territory accounts for nearly 5% of its population, mostly in the Canary Islands but also in Ceuta and Melilla.  - Cayey is a mountain municipality in central Puerto Rico located on the Central Mountain range, north of Salinas and Guayama; south of Cidra and Caguas; east of Aibonito and Salinas; and west of San Lorenzo. Cayey is spread over 21 wards plus Cayey Pueblo, the downtown area and the administrative center of the city. It is part of the San Juan-Caguas-Guaynabo Metropolitan Statistical Area.  - Puerto Rico, (Spanish for "Rich Port") officially the Commonwealth of Puerto Rico ("Free Associated State of Puerto Rico") and briefly called Porto Rico, is an unincorporated territory of the United States located in the northeast Caribbean Sea.  - Barrio is a Spanish word meaning neighborhood. In Spain, several Latin American countries and the Philippines, the term is also used officially to denote a division of a municipality.  - Puerto Rico Highway 1 (or PR-1) connects the city of Ponce to San Juan. Leaving Ponce, the road heads east and follows a somewhat parallel route along the southern coast of the island heading towards Salinas. At Salinas, the road turns north to cut through the Cordillera Central in its approach to San Juan. Before reaching San Juan, it climbs to make its way to the mountain town of Cayey and then it winds down into the city of Caguas on its final approach to San Juan.  - A city is a large and permanent human settlement. Although there is no agreement on how a city is distinguished from a town in general English language meanings, many cities have a particular administrative, legal, or historical status based on local law.  - Puerto Rico Highway 14 is a main highway connecting Cayey, Puerto Rico to Ponce, Puerto Rico. The road uses the same path as the historic old Carretera Central.  - Puerto Rico Highway 12 , also called Malecon Avenue , and Santiago de los Caballeros Avenue , is a 5.28 - kilometer , limited - access highway entirely located within the city limits of Ponce , Puerto Rico , and connecting Puerto Rico Highway 14 to the La Guancha area in Barrio Playa in Ponce . It is similar to a freeway but has one traffic light near its intersection with PR - 14 . The highway has four exits : PR - 52 , PR - 2 , PR - 133/Calle Comercio , and PR - 163 . Since PR - 12 's southern terminus is at the Port of Ponce , its traffic volume is expected to grow as construction in the new Port of the Americas is completed .  - Ponce is both a city and a municipality in the southern part of Puerto Rico. The city is the seat of the municipal government.  - The Philippines, officially the Republic of the Philippines, is a sovereign island country in Southeast Asia situated in the western Pacific Ocean. It consists of about 7,641 islands that are categorized broadly under three main geographical divisions from north to south: Luzon, Visayas, and Mindanao. The capital city of the Philippines is Manila and the most populous city is Quezon City, both part of Metro Manila. Bounded by the South China Sea on the west, the Philippine Sea on the east and the Celebes Sea on the southwest, the Philippines shares maritime borders with Taiwan to the north, Vietnam to the west, Palau to the east and Malaysia and Indonesia to the south.    What is the relationship between 'puerto rico highway 12' and 'road'?
The answer is:
instance of