This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

Ex Input:
Passage: The City of Charleston is served by the Charleston International Airport. It is located in the City of North Charleston and is about 12 miles (20 km) northwest of downtown Charleston. It is the busiest passenger airport in South Carolina (IATA: CHS, ICAO: KCHS). The airport shares runways with the adjacent Charleston Air Force Base. Charleston Executive Airport is a smaller airport located in the John's Island section of the city of Charleston and is used by noncommercial aircraft. Both airports are owned and operated by the Charleston County Aviation Authority. Question: Charleston Executive Airport is located where?

Ex Output:
the John's Island section of the city of Charleston


Ex Input:
Passage: The "Rheinische" Carnival is held in the west of Germany, mainly in the states of North Rhine-Westphalia or Nordrhein-Westfalen, Rhineland Palatinate or Rheinland-Pfalz, but also in Hessen [including Oberhessen], Bavaria and other states. Some cities are more famous for celebrations such as parades and costume balls. Köln or Cologne Carnival, as well as Mainz and Düsseldorf are the largest and most famous. Other cities have their own, often less well-known celebrations, parades and parties such as Worms am Rhein, Speyer, Kaiserslautern, Frankfurt, Darmstadt, Mannheim, Ludwigshafen, Stuttgart, Augsburg and München [Munich] Nürnberg. On Carnival Thursday (called "Old Women Day" or "The Women's Day") in commemoration of an 1824 revolt by washer-women, women storm city halls, cut men's ties, and are allowed to kiss any passing man. Question: Cologne Carnival is one of the largest Carnivals and also is the most what?

Ex Output:
famous


Ex Input:
Passage: The desert zone also accounts for about a third of the state's surface area. The Chihuahuan Desert is an international biome that also extends into the neighboring Mexican state of Coahuila and into the U.S. states of Texas and New Mexico. The desert zone is mainly of flat topography with some small mountain ranges that run north to south. The desert in the state varies slightly with a small variant in climate. The lower elevations of the desert zone are found in the north along the Rio Grande which experience hotter temperatures in the summer and winter while the southern portion of the desert zone experiences cooler temperatures due to its higher elevation. The Samalayuca dunes cover an area of about 150 km2; it is an impressive site of the Chihuahuan Desert and is a protected area by the state due to unique species of plants and animals. Question: Which well-known river runs in the northern part of the state?

Ex Output:

Rio Grande