Given the question: Information:  - 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.   - The Column of Marcus Aurelius is a Roman victory column in Piazza Colonna, Rome, Italy. It is a Doric column featuring a spiral relief: it was built in honour of Roman emperor Marcus Aurelius and modeled on Trajan's Column.  - Limestone is a sedimentary rock, composed mainly of skeletal fragments of marine organisms such as coral, forams and molluscs. Its major materials are the minerals calcite and aragonite, which are different crystal forms of calcium carbonate (CaCO).  - Lazio (; ) is one of the 20 administrative regions of Italy, situated in the central peninsular section of the country. With almost 5.9 million residents and a GDP of more than 170 billion euros, Lazio is the second most populated region of Italy (having approximately the same in population as Campania), and has the second largest economy of the nation. Its capital is Rome, capital and largest city of Italy.  - Meditations (literally "[that which is] to himself") is a series of personal writings by Marcus Aurelius, Roman Emperor from 161 to 180 AD, recording his private notes to himself and ideas on Stoic philosophy.  - Stoicism is a school of Hellenistic philosophy that flourished throughout the Roman and Greek world until the 3rd century AD. Stoicism is predominately a philosophy of personal ethics which is informed by its system of logic and its views on the natural world. According to its teachings, as social beings, the path to happiness for humans is found in accepting that which we have been given in life, by not allowing ourselves to be controlled by our desire for pleasure or our fear of pain, by using our minds to understand the world around us and to do our part in nature's plan, and by working together and treating others in a fair and just manner.  - Relief, formerly known as Panorama, is a public affairs newsmagazine series in Canada, airing nightly in Ontario on TFO, the Franco-Ontarian public television network.  - The (plural: "") is a basic administrative division in Italy, roughly equivalent to a township or municipality.  - Trajan's Column is a Roman triumphal column in Rome, Italy, that commemorates Roman emperor Trajan's victory in the Dacian Wars. It was probably constructed under the supervision of the architect Apollodorus of Damascus at the order of the Roman Senate. It is located in Trajan's Forum, built near the Quirinal Hill, north of the Roman Forum. Completed in AD 113, the freestanding column is most famous for its spiral bas relief, which artistically describes the epic wars between the Romans and Dacians (101102 and 105106). Its design has inspired numerous victory columns, both ancient and modern.  - A sarcophagus (plural, sarcophagi) is a box-like funeral receptacle for a corpse, most commonly carved in stone, and usually displayed above ground, though it may also be buried. The word "sarcophagus" comes from the Greek "sarx" meaning "flesh", and "phagein" meaning "to eat", hence "sarcophagus" means "flesh-eating"; from the phrase "lithos sarkophagos". Since "lithos" is Greek for "stone", "lithos sarcophagos" means, "flesh-eating stone". The word also came to refer to a particular kind of limestone that was thought to decompose the flesh of corpses trapped within it.  - The Roman emperor was the ruler of the Roman Empire during the imperial period (starting in 27 BC). The emperors used a variety of different titles throughout history. Often when a given Roman is described as becoming "emperor" in English, it reflects his taking of the title "Augustus" or "Caesar". Another title often used was "imperator", originally a military honorific. Early Emperors also used the title "princeps" (first citizen). Emperors frequently amassed republican titles, notably "Princeps Senatus", "Consul" and "Pontifex Maximus".  - The European Union (EU) is a political and economic union of member states that are located primarily in Europe. It has an area of , and an estimated population of over 510 million. The EU has developed an internal single market through a standardised system of laws that apply in all member states. EU policies aim to ensure the free movement of people, goods, services, and capital within the internal market, enact legislation in justice and home affairs, and maintain common policies on trade, agriculture, fisheries, and regional development. Within the Schengen Area, passport controls have been abolished. A monetary union was established in 1999 and came into full force in 2002, and is composed of 19 EU member states which use the euro currency.  - Vatican City , officially Vatican City State or the State of Vatican City, is a walled enclave within the city of Rome. With an area of approximately 44 hectares (110 acres), and a population of 842, it is the smallest State in the world by both area and population, but formally it is not sovereign, sovereignty being held by the Holy See, the only entity of public international law that has diplomatic relations with almost every country in the world.  - The Portonaccio sarcophagus is a 2nd - century ancient Roman sarcophagus found in the Portonaccio quarter of Rome and now held at the Museo Nazionale Romano ( palazzo Massimo ) . Dating to between 190 and 200 , it was used for the burial of a Roman general involved in the campaigns of Marcus Aurelius and shows influences similar to those of the Column of Marcus Aurelius . The sarcophagus is one of a group of about twenty - five late Roman battle sarcophagi , with one exception all apparently dating to 170 - 210 , made in Rome or in some cases Athens . These derive from Hellenistic monuments from Pergamon in Asia Minor showing Pergamene victories over the Gauls , and were all presumably commissioned for military commanders . The Portonaccio sarcophagus is the best known and most elaborate of the main Antonine group , and shows both considerable similarities to the Great Ludovisi sarcophagus , the late outlier from about 250 , and a considerable contrast in style and mood . The face of the general is unfinished , either because the sculptors awaited a model to work from , or they had produced the work speculatively with no specific commission . The general and his wife are also each shown twice on the lid frieze , together holding each other 's hands at the centre , and singly at the ends , again with unfinished faces . Pairs of figures of an older man and a woman stand beneath trophies at either end of the main face , uninvolved in the battle . These are at the same scale as the general , and all other the battling figures are smaller ; indeed , in defiance of any attempt at perspective , the soldiers and horses at the `` front '' of the scene in the lower part are somewhat smaller than their equivalents at the `` back '' in the upper part .  - Latium is the region of central western Italy in which the city of Rome was founded and grew to be the capital city of the Roman Empire. Latium was originally a small triangle of fertile, volcanic soil on which resided the tribe of the Latins or Latians. It was located on the left bank (east and south) of the Tiber river, extending northward to the Anio river (a left-bank tributary of the Tiber) and southeastward to the Pomptina Palus (Pontine Marshes, now the Pontine Fields) as far south as the Circeian promontory. The right bank of the Tiber was occupied by the Etruscan city of Veii, and the other borders were occupied by Italic tribes. Subsequently, Rome defeated Veii and then its Italic neighbors, expanding Latium to the Apennine Mountains in the northeast and to the opposite end of the marsh in the southeast. The modern descendant, the Italian "Regione" of Lazio, also called "Latium" in Latin, and occasionally in modern English, is somewhat larger still, but not as much as double the original Latium.  - Marcus Aurelius (26 April 121  17 March 180 AD) was Roman Emperor from 161 to 180 AD. He ruled with Lucius Verus as co-emperor from 161 until Verus' death in 169. Marcus Aurelius was the last of the so-called Five Good Emperors. He was a practitioner of Stoicism, and his untitled writing, commonly known as the "Meditations", is the most significant source of the modern understanding of ancient Stoic philosophy.  - Piazza Colonna is a piazza at the center of the Rione of Colonna in the historic heart of Rome, Italy. It is named for the marble Column of Marcus Aurelius, which has stood there since AD 193. The bronze statue of Saint Paul that crowns the column was placed in 1589, by order of Pope Sixtus V. The Roman Via Lata (now the Via del Corso) runs through the piazza's eastern end, from south to north.    After reading the paragraphs above, we are interested in knowing the entity with which 'portonaccio sarcophagus' exhibits the relationship of 'genre'. Find the answer from the choices below.  Choices: - agriculture  - basic  - country  - design  - epic  - history  - law  - march  - meditations  - military  - nature  - philosophy  - relief  - rock  - statue  - variety  - western
The answer is:
relief