Question: The city also boasts an efficient network of public transportation, which mainly consists of bus, taxi and metro systems. The bus network, which is currently run by three companies since 2011, provides more than 370 routes covering all parts of the city and suburban areas. Nanjing Metro Line 1, started service on September 3, 2005, with 16 stations and a length of 21.72 km. Line 2 and the 24.5 km-long south extension of Line 1 officially opened to passenger service on May 28, 2010. At present, Nanjing has a metro system with a grand total of 223.6 kilometers (138.9 mi) of route and 121 stations. They are Line 1, Line 2, Line 3, Line 10, Line S1 and Line S8. The city is planning to complete a 17-line Metro and light-rail system by 2030. The expansion of the Metro network will greatly facilitate the intracity transportation and reduce the currently heavy traffic congestion.
Is there an answer to this question: What are the main types of public transportation?

Answer: bus, taxi and metro systems


Question: For Ruskin, the aesthetic was of overriding significance. His work goes on to state that a building is not truly a work of architecture unless it is in some way "adorned". For Ruskin, a well-constructed, well-proportioned, functional building needed string courses or rustication, at the very least.
Is there an answer to this question: What was most significant in architecture according to Ruskin?

Answer: the aesthetic


Question: The New York metropolitan area is home to a self-identifying gay and bisexual community estimated at 568,903 individuals, the largest in the United States and one of the world's largest. Same-sex marriages in New York were legalized on June 24, 2011 and were authorized to take place beginning 30 days thereafter.
Is there an answer to this question: On what date did New York legalize gay marriage?

Answer: June 24, 2011


Question: According to Der Spiegel, credits given to European governments were disguised as "swaps" and consequently did not get registered as debt because Eurostat at the time ignored statistics involving financial derivatives. A German derivatives dealer had commented to Der Spiegel that "The Maastricht rules can be circumvented quite legally through swaps," and "In previous years, Italy used a similar trick to mask its true debt with the help of a different US bank." These conditions had enabled Greek as well as many other European governments to spend beyond their means, while meeting the deficit targets of the European Union and the monetary union guidelines. In May 2010, the Greek government deficit was again revised and estimated to be 13.6% which was the second highest in the world relative to GDP with Iceland in first place at 15.7% and Great Britain third with 12.6%. Public debt was forecast, according to some estimates, to hit 120% of GDP during 2010.
Is there an answer to this question: What was Greece's public debt forecast to hit as low of a percentage of GDP of in 2000?

Answer:
unanswerable