Problem: Please answer a question about the following article about Gramophone record:
Delicate sounds and fine overtones were mostly lost, because it took a lot of sound energy to vibrate the recording horn diaphragm and cutting mechanism. There were acoustic limitations due to mechanical resonances in both the recording and playback system. Some pictures of acoustic recording sessions show horns wrapped with tape to help mute these resonances. Even an acoustic recording played back electrically on modern equipment sounds like it was recorded through a horn, notwithstanding a reduction in distortion because of the modern playback. Toward the end of the acoustic era, there were many fine examples of recordings made with horns.
What was the quality of sound recordings made with horns at the end of the acoustic era?
A: many fine examples
Problem: Please answer a question about the following article about Charleston, South Carolina:
According to the United States Census Bureau, the city has a total area of 127.5 square miles (330.2 km2), of which 109.0 square miles (282.2 km2) is land and 18.5 square miles (47.9 km2) is covered by water. The old city is located on a peninsula at the point where, as Charlestonians say, "The Ashley and the Cooper Rivers come together to form the Atlantic Ocean." The entire peninsula is very low, some is landfill material, and as such, frequently floods during heavy rains, storm surges, and unusually high tides. The city limits have expanded across the Ashley River from the peninsula, encompassing the majority of West Ashley as well as James Island and some of Johns Island. The city limits also have expanded across the Cooper River, encompassing Daniel Island and the Cainhoy area. North Charleston blocks any expansion up the peninsula, and Mount Pleasant occupies the land directly east of the Cooper River.
Which city blocks Charleston for expanding up the peninsula? 
A: North Charleston
Problem: Please answer a question about the following article about Ottoman Empire:
The Ottomans absorbed some of the traditions, art and institutions of cultures in the regions they conquered, and added new dimensions to them. Numerous traditions and cultural traits of previous empires (in fields such as architecture, cuisine, music, leisure and government) were adopted by the Ottoman Turks, who elaborated them into new forms, which resulted in a new and distinctively Ottoman cultural identity. Despite newer added amalgamations, the Ottoman dynasty, like their predecessors in the Sultanate of Rum and the Seljuk Empire, were thoroughly Persianised in their culture, language, habits and customs, and therefore, the empire has been described as a Persianate empire. Intercultural marriages also played their part in creating the characteristic Ottoman elite culture. When compared to the Turkish folk culture, the influence of these new cultures in creating the culture of the Ottoman elite was clear.
What is one way that the Empire was described as it related to culture?
A: Persianate empire
Problem: Please answer a question about the following article about Arsenal F.C.:
Like all major English football clubs, Arsenal have a number of domestic supporters' clubs, including the Arsenal Football Supporters' Club, which works closely with the club, and the Arsenal Independent Supporters' Association, which maintains a more independent line. The Arsenal Supporters' Trust promotes greater participation in ownership of the club by fans. The club's supporters also publish fanzines such as The Gooner, Gunflash and the satirical Up The Arse!. In addition to the usual English football chants, supporters sing "One-Nil to the Arsenal" (to the tune of "Go West").
What type of clubs does Arsenal have?
A:
domestic supporters' clubs