Please answer the following question: Information:  - Zacharo is a town and municipality in southwestern Greece. Administratively, it belongs to the Elis regional unit, in the region of West Greece. Zacharo is situated on the coast of the Gulf of Kyparissia, a part of the Ionian Sea. The mountain Lapithas is to the north, and the Minthi is to the east. Northwest of the town, between mount Lapithas and the sea, is the Kaiafas Lake. Zacharo is 18 km south of Olympia, 28 km southeast of Pyrgos, 65 km northwest of Kalamata and 65 km west of Tripoli. The town is crossed by the Greek National Road 9/E55, that links Patras with Kalamata.  - Athens ("Athína" ) is the capital and largest city of Greece. Athens dominates the Attica region and is one of the world's oldest cities, with its recorded history spanning over 3,400 years, and its earliest human presence starting somewhere between the 11th and 7th millennia BC. Classical Athens was a powerful city-state that emerged in conjunction with the seagoing development of the port of Piraeus, which had been a distinct city prior to its 5th century BC incorporation with Athens. A centre for the arts, learning and philosophy, home of Plato's Academy and Aristotle's Lyceum, it is widely referred to as the cradle of Western civilization and the birthplace of democracy, largely because of its cultural and political impact on the European continent, and in particular the Romans. In modern times, Athens is a large cosmopolitan metropolis and central to economic, financial, industrial, maritime, political and cultural life in Greece. In 2015, Athens was ranked the world's 29th richest city by purchasing power and the 67th most expensive in a UBS study.  - Thessaloniki is the second-largest city in Greece and the capital of Greek Macedonia, the administrative region of Central Macedonia and the Decentralized Administration of Macedonia and Thrace. Its nickname is   ("Symprotévousa"), literally "the co-capital", a reference to its historical status as the  ("Symvasilévousa") or "co-reigning" city of the Eastern Roman (Byzantine) Empire, alongside Constantinople.  - Europe is a continent that comprises the westernmost part of Eurasia. Europe is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, and the Mediterranean Sea to the south. To the east and southeast, Europe is generally considered as separated from Asia by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways of the Turkish Straits. Yet the non-oceanic borders of Europea concept dating back to classical antiquityare arbitrary. The primarily physiographic term "continent" as applied to Europe also incorporates cultural and political elements whose discontinuities are not always reflected by the continent's current overland boundaries.  - The Ionian Sea (, , ) is an elongated embayment of the Mediterranean Sea, south of the Adriatic Sea. It is bounded by southern Italy including Calabria, Sicily, and the Salento peninsula to the west, southern Albania to the north, and the west coast of Greece.  - Krestena is a town and a community in Elis, West Greece, Greece. Since the 2011 local government reform it is part of the municipality Andritsaina-Krestena, of which it is the seat of administration. Krestena is situated in the low hills between the river Alfeios and the Ionian Sea. It is 2 km southeast of Makrisia, 6 km south of Olympia, 12 km north of Zacharo and 18 km southeast of Pyrgos. In 2011, the population of the town was 1,864, and of the community, which includes the villages Poros and Moschoula, 2,356. The town has a kindergarten, schools, a lyceum, a gymnasium, a center of environmental training, two churches, restaurants, banks, a police station, a fire brigade, a medical center and a post office. Greek National Road 76 (Kallikomo - Andritsaina - Megalopoli) passes south of the town. The Samiko beach is located approximately 6 kilometers to the north.  - Alfeiós (also romanized as Alpheus, Alpheios) is the longest river in the Peloponnese, in Greece. The river is 110 km long, flowing through the regional units of Arcadia and Elis. Its source is near the village Dorizas, about halfway between Tripoli and Megalopoli in the highlands of Arcadia. It flows southwest toward Megalopoli, where it has been diverted around open pit lignite mines. At Thoknia it receives its right tributary Elissonas, and continues north towards Karytaina. Below Karytaina the Lousios flows into the Alfeios, and the Alfeios continues northwest, passing north of Andritsaina. Near Tripotamia the rivers Ladon and Erymanthos flow into the Alfeios. The Alfeios then flows west along Olympia and empties into the Ionian Sea south of Pyrgos.  - Makrisia is a village in the municipal unit of Skillounta, Elis, Greece. In 2011 its population was 1,720. It is situated near the left bank of the river Alfeios, 2 km northwest of Krestena, 3 km northeast of Kallikomo, 4 km southwest of Olympia and 16 km southeast of Pyrgos.  - Alifeira ( Greek :  ) is a mountain village and a former municipality in Elis , West Greece , Greece . Since the 2011 local government reform it is part of the municipality Andritsaina - Krestena , of which it is a municipal unit . The seat of the municipality was in the village of Kallithea .  - Greek National Road 76 (abbreviated as EO76) is a single carriageway road in southern Greece. It connects the Greek National Road 9 near Krestena with Megalopoli, via Andritsaina and Karytaina. It runs through the western and the central part of the Peloponnese, in the regional units Elis and Arcadia.   - Greece (' ), officially the Hellenic Republic (Greek: ' ), historically also known as Hellas ("" ), is a country in southeastern Europe.  Greece's population is approximately 10.955 million as of 2015. Athens is the nation's capital and largest city, followed by Thessaloniki.  - Kallikomo (Greek: ) is a village and a community in the municipal unit of Skillounta, Elis, Greece. It is situated 5 km from the Ionian Sea, 3 km west of Krestena, 5 km north of Kato Samiko and 16 km southeast of Pyrgos. The GR-9/E55 (Patras - Pyrgos - Kyparissia) runs through the village. The junction with the Greek National Road 76 to Krestena and Megalopoli is 1 km east of the village. The community consists of the villages Kallikomo, Krounoi and Ladiko.  - Andritsaina is a town and a former municipality in Elis, West Greece, Greece. Since the 2011 local government reform it is part of the municipality Andritsaina-Krestena, of which it is a municipal unit. The municipal unit has an area of 131.247 km.  - The euro (sign: €; code: EUR) is the official currency of the eurozone, which consists of 19 of the member states of the European Union: Austria, Belgium, Cyprus, Estonia, Finland, France, Germany, Greece, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Portugal, Slovakia, Slovenia, and Spain. The currency is also officially used by the institutions of the European Union and four other European countries, as well as unilaterally by two others, and is consequently used daily by some 337 million Europeans . Outside of Europe, a number of overseas territories of EU members also use the euro as their currency.    What entity does 'alifeira' has the relation 'shares border with' with?
A:
olympia