Question: Where is the Spanish region where people dress in masks and costumes located?

full_context: Document 1: Carnival: In Catalonia people dress in masks and costume (often in themed groups) and organize a week-long series of parties, pranks, outlandish activities such as bed races, street dramas satirizing public figures and raucous processions to welcome the arrival of Sa Majestat el Rei Carnestoltes (His Majesty King Carnival), known by various titles, including el Rei dels poca-soltes (King of the Crackpots), Princep etern de Cornudella (Eternal Prince of Cuckoldry), Duc de ximples i corrumputs (Duke of Fools and the Corrupt), Marquès de la bona mamella (Marquis of the lovely breast), Comte de tots els barruts (Count of the Insolent), Baró de les Calaverades (Baron of Nocturnal Debaucheries), and Senyor de l'alt Plàtan florit, dels barraquers i gamberrades i artista d'honor dalt del llit (Lord of the Tall Banana in Bloom, of the Voyeurs and Punks and the Artist of Honor upon the Bed).
Document 2: Catalan language: The Germanic superstrate has had different outcomes in Spanish and Catalan. For example, Catalan fang "mud" and rostir "to roast", of Germanic origin, contrast with Spanish lodo and asar, of Latin origin; whereas Catalan filosa "spinning wheel" and pols "temple", of Latin origin, contrast with Spanish rueca and sien, of Germanic origin.
Document 3: Catalan language: Catalan shares many traits with its neighboring Romance languages. However, despite being mostly situated in the Iberian Peninsula, Catalan differs more from Iberian Romance (such as Spanish and Portuguese) in terms of vocabulary, pronunciation, and grammar than from Gallo-Romance (Occitan, French, Gallo-Italic languages, etc.). These similarities are most notable with Occitan.
Document 4: Carnival: Tarragona has one of the region's most complete ritual sequences. The events start with the building of a huge barrel and ends with its burning with the effigies of the King and Queen. On Saturday, the main parade takes place with masked groups, zoomorphic figures, music and percussion bands, and groups with fireworks (the devils, the dragon, the ox, the female dragon). Carnival groups stand out for their clothes full of elegance, showing brilliant examples of fabric crafts, at the Saturday and Sunday parades. About 5,000 people are members of the parade groups.
Document 5: Catalan language: According to Ethnologue, the lexical similarity between Catalan and other Romance languages is: 87% with Italian; 85% with Portuguese; 80% with Spanish; 76% with Ladin; 75% with Sardinian; and 73% with Romanian.
Document 6: Carnival: Carnaval de Solsona takes place in Solsona, Lleida. It is one of the longest; free events in the streets, and nightly concerts run for more than a week. The Carnival is known for a legend that explains how a donkey was hung at the tower bell − because the animal wanted to eat grass that grew on the top of the tower. To celebrate this legend, locals hang a stuffed donkey at the tower that "pisses" above the excited crowd using a water pump. This event is the most important and takes place on Saturday night. For this reason, the inhabitants are called "matarrucs" ("donkey killers").
Document 7: Carnival: Adults have a meringue battle at midnight at the historic Plaça de les Cols. In the mysterious sortida del Moixo Foguer (the outing of Little-Bird-Bonfire) accompanied by the Xerraire (jabberer) who insults the crowd. In the King's precession he and his concubines scandalize the town with their sexual behavior. A correfoc (fire run) or Devil's dance (Ball de diables, features dancing youth amid the sparks and explosions of the ritual crew of devils. Other items includes bed races in the streets, the debauched Nit dels Mascarots, Karaoke sausage roasts, xatonades, the children's party, Vidalet, the last night of revelry, Vidalot, the talking-dance of the Mismatched Couples (Ball de Malcasats) and the children's King Caramel whose massive belly, long nose and sausage-like hair hint at his insatiable appetites.
Document 8: Carnival: Carnival means weeks of events that bring colourfully decorated floats, contagiously throbbing music, luxuriously costumed groups of celebrants of all ages, King and Queen elections, electrifying jump-ups and torchlight parades, the Jouvert morning: the Children's Parades and finally the Grand Parade. Aruba's biggest celebration is a month-long affair consisting of festive "jump-ups" (street parades), spectacular parades and creative contests. Music and flamboyant costumes play a central role, from the Queen elections to the Grand Parade. Street parades continue in various districts throughout the month, with brass band, steel drum and roadmarch tunes. On the evening before Lent, Carnival ends with the symbolic burning of King Momo.
Document 9: Carnival: During the celebration, theaters called tablados are built in many places throughout the cities, especially in Montevideo. Traditionally formed by men and now starting to be open to women, the different Carnival groups (Murgas, Lubolos or Parodistas) perform a kind of popular opera at the tablados, singing and dancing songs that generally relate to the social and political situation. The 'Calls' groups, basically formed by drummers playing the tamboril, perform candombe rhythmic figures. Revelers wear their festival clothing. Each group has its own theme. Women wearing elegant, bright dresses are called vedettes and provide a sensual touch to parades.
Document 10: Dialect: In addition to having evolved, for the most part, separately from one another and with distinct individual histories, the Latin-based regional Romance languages of Italy are also better classified as separate languages rather than true "dialects" due to the often high degree in which they lack mutual intelligibility. Though mostly mutually unintelligible, the exact degree to which the regional Italian languages are mutual unintelligible varies, often correlating with geographical distance or geographical barriers between the languages, with some regional Italian languages that are closer in geographical proximity to each other or closer to each other on the dialect continuum being more or less mutually intelligible. For instance, a speaker of purely Eastern Lombard, a language in Northern Italy's Lombardy region that includes the Bergamasque dialect, would have severely limited mutual intelligibility with a purely standard Italian speaker and would be nearly completely unintelligible to a speaker of a pure Sicilian language variant. Due to Eastern Lombard's status as a Gallo-Italic language, an Eastern Lombard speaker may, in fact, have more mutual intelligibility with a Occitan, Catalan, or French speaker than a standard Italian or Sicilian language speaker. Meanwhile, a Sicilian language speaker would have an greater degree of mutual intelligibility with a speaker of the more closely related Neapolitan language, but far less mutual intelligibility with a person speaking Sicilian Gallo-Italic, a language that developed in isolated Lombard emigrant communities on the same island as the Sicilian language.
Document 11: Catalan language: Catalan (/ˈkætəlæn/; autonym: català [kətəˈla] or [kataˈla]) is a Romance language named for its origins in Catalonia, in what is northeastern Spain and adjoining parts of France. It is the national and only official language of Andorra, and a co-official language of the Spanish autonomous communities of Catalonia, the Balearic Islands, and Valencia (where the language is known as Valencian, and there exist regional standards). It also has semi-official status in the city of Alghero on the Italian island of Sardinia. It is also spoken with no official recognition in parts of the Spanish autonomous communities of Aragon (La Franja) and Murcia (Carche), and in the historic French region of Roussillon/Northern Catalonia, roughly equivalent to the department of Pyrénées-Orientales.
Document 12: Carnival: Carnival (see other spellings and names) is a Christian festive season that occurs before the Christian season of Lent. The main events typically occur during February or early March, during the period historically known as Shrovetide (or Pre-Lent). Carnival typically involves a public celebration and/or parade combining some elements of a circus, masks and public street party. People wear masks and costumes during many such celebrations, allowing them to lose their everyday individuality and experience a heightened sense of social unity. Excessive consumption of alcohol, meat, and other foods proscribed during Lent is extremely common. Other common features of carnival include mock battles such as food fights; social satire and mockery of authorities; the grotesque body displaying exaggerated features especially large noses, bellies, mouths, and phalli or elements of animal bodies; abusive language and degrading acts; depictions of disease and gleeful death; and a general reversal of everyday rules and norms.
Document 13: Catalan language: During much of its history, and especially during the Francoist dictatorship (1939–1975), the Catalan language has often been degraded as a mere dialect of Spanish. This view, based on political and ideological considerations, has no linguistic validity. Spanish and Catalan have important differences in their sound systems, lexicon, and grammatical features, placing the language in a number of respects closer to Occitan (and French).
Document 14: Carnival: Comparsas are held throughout the week, consisting of large groups "of dancers dancing and traveling on the streets, followed by a Carrosa (carriage) where the musicians play. The Comparsa is a development of African processions where groups of devotees follow a given saint or deity during a particular religious celebration". One of the most popular comparsas of Fiesta de Carnaval is the male group comparsa, usually composed of notable men from the community who dress up in outlandish costumes or cross-dress and dance to compete for money and prizes. Other popular activities include body painting and flour fighting. "On the last day of Carnival painters flood the street to paint each other. This simply means that a mixture of water paint and water or raw eggs is used to paint people on the streets, the goal being to paint as many people as you can".
Document 15: Catalan language: Catalan dialects are relatively uniform, and are mutually intelligible. They are divided into two blocks, Eastern and Western, differing mostly in pronunciation. The terms "Catalan" and "Valencian" (respectively used in Catalonia and the Valencian Community) are two different varieties of the same language. There are two institutions regulating the two standard varieties, the Institute of Catalan Studies in Catalonia and the Valencian Academy of the Language in Valencia.
ground_truth: Iberian Peninsula
sub_queries: Where do people dress in masks and costume? Answer: Catalonia
Where is Catalonia located? Answer: Iberian Peninsula