You will be given a definition of a task first, then some input of the task.
In this task, you are given a context, a subject, a relation, and many options. Based on the context, from the options select the object entity that has the given relation with the subject. Answer with text (not indexes).

Context: Italy, officially the Italian Republic, is a unitary parliamentary republic in Europe. Located in the heart of the Mediterranean Sea, Italy shares open land borders with France, Switzerland, Austria, Slovenia, San Marino and Vatican City. Italy covers an area of and has a largely temperate seasonal climate and Mediterranean climate; due to its shape, it is often referred to in Italy as "lo Stivale" (the Boot). With 61 million inhabitants, it is the fourth most populous EU member state., Umberto I (14 March 1844  29 July 1900), nicknamed "the Good" (Italian: "il Buono"), was the King of Italy from 9 January 1878 until his assassination on 29 July 1900., The Rome Metro is an underground public transportation system that operates in Rome, Italy. The network opened in 1955, making it the oldest in the country. The Metro comprises three lines  Line A (orange), Line B (blue) and Line C (green)  which operate on of route, serving 73 stations. The original lines in the system, Lines A and B, form an X shape with the lines intersecting at Termini Station, the main train station in Rome. Line B splits at the Bologna station into two branches. While Line C opened in 2014, it is not yet connected to the rest of the Metro network. Plans have also been announced for a fourth line., Bologna (;  ) is the largest city (and the capital) of the Emilia-Romagna Region in Northern Italy. It is the seventh most populous city in Italy, located in the heart of a metropolitan area (officially recognized by the Italian government as a "città metropolitana") of about one million., Policlinico is a station on Line B of the Rome Metro . It is named after the nearby Policlinico Umberto I. It is located in piazza Sassari , on viale Regina Margherita at the corner of via Caserta and via Giovanni Maria Lancisi . It was opened in 1990 ., The SantOrsola-Malpighi Polyclinic (official Italian name: "Azienda ospedaliero-universitaria Policlinico SantOrsola Malpighi") is a university and public hospital. It is the first of the four top hospitals of the city of Bologna, Italy (Ospedale Maggiore, Istituto Ortopedico Rizzoli, Ospedale Bellaria)., Rome is a city and special "comune" (named "Roma Capitale") in Italy. Rome is the capital of Italy and of the Lazio region. With 2,870,336 residents in , it is also the country's largest and most populated "comune" and fourth-most populous city in the European Union by population within city limits. The Metropolitan City of Rome has a population of 4.3 million residents. The city is located in the central-western portion of the Italian Peninsula, within Lazio (Latium), along the shores of Tiber river. The Vatican City is an independent country geographically located within the city boundaries of Rome, the only existing example of a country within a city: for this reason Rome has been often defined as capital of two states. , Located in the Quartiere San Lorenzo, the Policlinico Umberto I of Rome is the polyclinic of the Faculty of Medicine and Surgery of the Sapienza Università di Roma. The second largest public hospital in Italy (after the Policlinico Sant'Orsola-Malpighi in Bologna), its construction was mainly promoted by Italian physicians and politicians Guido Baccelli and Francesco Durante and began in 1883 to plans by Giulio Podesti and Filippo Laccetti, and was completed 20 years later, with the opening presided over by the then rector Luigi Galassi and by Umberto I of Italy, after whom it is named. It is served by the Policlinico Metro station., San Lorenzo is a district ("quartiere") in Rome, Italy., Subject: policlinico , Relation: instance_of, Options: (A) area (B) city (C) climate (D) construction (E) district (F) faculty (G) government (H) hospital (I) italy (J) january (K) july (L) king (M) line (N) march (O) medicine (P) mediterranean sea (Q) metro station (R) metropolitan area (S) name (T) official (U) peninsula (V) population (W) public (X) public hospital (Y) region (Z) shape ([) station (\) surgery (]) the city (^) three (_) train
Output:
metro station