Article: London's most popular sport is football and it has fourteen League football clubs, including five in the Premier League: Arsenal, Chelsea, Crystal Palace, Tottenham Hotspur, and West Ham United. Among other professional teams based in London include Fulham, Queens Park Rangers, Millwall and Charlton Athletic. In May 2012, Chelsea became the first London club to win the UEFA Champions League. Aside from Arsenal, Chelsea and Tottenham, none of the other London clubs have ever won the national league title.

Question: Besides the Arsenal, Chelsea, and Tottenham football clubs, how many London-based football club have won a national league titie?
Ans: none

Article: By 1874, Bell's initial work on the harmonic telegraph had entered a formative stage, with progress made both at his new Boston "laboratory" (a rented facility) and at his family home in Canada a big success.[N 14] While working that summer in Brantford, Bell experimented with a "phonautograph", a pen-like machine that could draw shapes of sound waves on smoked glass by tracing their vibrations. Bell thought it might be possible to generate undulating electrical currents that corresponded to sound waves. Bell also thought that multiple metal reeds tuned to different frequencies like a harp would be able to convert the undulating currents back into sound. But he had no working model to demonstrate the feasibility of these ideas.

Question: What instrument is a phonautograph similar to?
Ans: pen

Article: Central Catalan has abandoned almost completely unstressed possessives (mon, etc.) in favour of constructions of article + stressed forms (el meu, etc.), a feature shared with Italian.

Question: What is an example of an article +stressed forms?
Ans: el meu

Article: According to the official Twenty-Four Histories, the History of Ming compiled in 1739 by the subsequent Qing dynasty (16441912), the Ming dynasty established the "E-Li-Si Army-Civilian Marshal Office" (Chinese: ) in western Tibet and installed the "U-Tsang Itinerant High Commandery" and "Amdo-Kham Itinerant High Commandery" to administer Kham. The Mingshi states that administrative offices were set up under these high commanderies, including one Itinerant Commandery, three Pacification Commissioner's Offices, six Expedition Commissioner's Offices, four Wanhu offices (myriarchies, in command of 10,000 households each) and seventeen Qianhu offices (chiliarchies, each in command of 1,000 households).

Question: How many Qianhu offices were there?
Ans:
seventeen Qianhu offices