Problem: Infection:

Diagnosis of infectious disease sometimes involves identifying an infectious agent either directly or indirectly. In practice most minor infectious diseases such as warts, cutaneous abscesses, respiratory system infections and diarrheal diseases are diagnosed by their clinical presentation and treated without knowledge of the specific causative agent. Conclusions about the cause of the disease are based upon the likelihood that a patient came in contact with a particular agent, the presence of a microbe in a community, and other epidemiological considerations. Given sufficient effort, all known infectious agents can be specifically identified. The benefits of identification, however, are often greatly outweighed by the cost, as often there is no specific treatment, the cause is obvious, or the outcome of an infection is benign.

What does diagnosis of an infectious always involve ignoring?
---
A: unanswerable


Problem: In the vaulting events, gymnasts sprint down a 25 metres (82 ft) runway, jump onto a spring filled board or perform a roundoff, or handspring entry onto a springboard (run/ take-off segment), land momentarily, inverted on the hands on the vaulting horse, or vaulting table (pre flight segment), then propel themselves forward or backward, off of this platform to a two footed landing (post flight segment). Every gymnast starts at a different point on the vault runway depending on their height and strength. The post flight segment may include one or more multiple saltos or somersaults, and/or twisting movements. A round-off entry vault, called a Yurchenko, is the most common vault in elite level gymnastics. When performing a yurchenko, gymnasts "round-off" so hands are on the runway while the feet land on the springboard (beatboard). From the roundoff position the gymnast travels backwards and executes a backhandspring so that the hands land on the vaulting table. The gymnast then blocks off the vaulting platform into various twisting and/or somersaulting combinations. The post flight segment brings the gymnast to her feet.
What is the most common vault in elite level gymnastics?
---
Answer: yurchenko


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Valencia has experienced a surge in its cultural development during the last thirty years, exemplified by exhibitions and performances at such iconic institutions as the Palau de la Música, the Palacio de Congresos, the Metro, the City of Arts and Sciences (Ciutat de les Arts i les Ciències), the Valencian Museum of Enlightenment and Modernity (Museo Valenciano de la Ilustracion y la Modernidad), and the Institute of Modern Art (Instituto Valenciano de Arte Moderno). The various productions of Santiago Calatrava, a renowned structural engineer, architect, and sculptor and of the architect Félix Candela have contributed to Valencia's international reputation. These public works and the ongoing rehabilitation of the Old City (Ciutat Vella) have helped improve the city's livability and tourism is continually increasing.
During what period has Valencia had a cultural surge?
A: the last thirty years


Context and question: Railway connections play a somewhat lesser role in Greece than in many other European countries, but they too have also been expanded, with new suburban/commuter rail connections, serviced by Proastiakos around Athens, towards its airport, Kiato and Chalkida; around Thessaloniki, towards the cities of Larissa and Edessa; and around Patras. A modern intercity rail connection between Athens and Thessaloniki has also been established, while an upgrade to double lines in many parts of the 2,500 km (1,600 mi) network is underway. International railway lines connect Greek cities with the rest of Europe, the Balkans and Turkey.
How long is the Greek railway system?
Answer: 1,600 mi


Question: Saint-Barthélemy has a marine nature reserve, known as the Reserve Naturelle that covers 1.200 ha, and is divided into 5 zones all around the island to form a network of protected areas. The Reserve includes the bays of Grand Cul de Sac, Colombier, Marigot, Petit Cul de Sac, Petite Anse as well as waters around offshore rocks such as Les Gross Islets, Pain de Sucre, Tortue and Forchue. The Reserve is designed to protect the islands coral reefs, seagrass and endangered marine species including sea turtles. The Reserve has two levels of protection, the yellow zones of protection where certain non-extractive activities, like snorkeling and boating, are allowed and the red zones of high protection where most activities including SCUBA are restricted in order to protect or recover marine life. Anchoring is prohibited in the Reserve and mooring buoys are in place in some of the protected bays like Colombier
Is there an answer to this question: Colombier Bay has what type of helpful structures placed in the water?

Answer: mooring buoys


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Some of the cleaner energy facilities in Boston include the Allston green district, with three ecologically compatible housing facilities. Boston is also breaking ground on multiple green affordable housing facilities to help reduce the carbon footprint of the city while simultaneously making these initiatives financially available to a greater population. Boston's climate plan is updated every three years and was most recently modified in 2013. This legislature includes the Building Energy Reporting and Disclosure Ordinance, which requires the city's larger buildings to disclose their yearly energy and water use statistics and partake in an energy assessment every five years. These statistics are made public by the city, thereby increasing incentives for buildings to be more environmentally conscious.
How often is Boston's climate plan updated?
A:
every three years