Problem: Canadian Armed Forces:

The Canadian Joint Operations Command is an operational element established in October 2012 with the merger of Canada Command, the Canadian Expeditionary Force Command and the Canadian Operational Support Command. The new command, created as a response to the cost-cutting measures in the 2012 federal budget, combines the resources, roles and responsibilities of the three former commands under a single headquarters.

 When was the non-Canadian Joint Operations Command established?
---
A: unanswerable


Problem: For "closed systems" with no external source or sink of energy, the first law of thermodynamics states that a system's energy is constant unless energy is transferred in or out by mechanical work or heat, and that no energy is lost in transfer. This means that it is impossible to create or destroy energy. While heat can always be fully converted into work in a reversible isothermal expansion of an ideal gas, for cyclic processes of practical interest in heat engines the second law of thermodynamics states that the system doing work always loses some energy as waste heat. This creates a limit to the amount of heat energy that can do work in a cyclic process, a limit called the available energy. Mechanical and other forms of energy can be transformed in the other direction into thermal energy without such limitations. The total energy of a system can be calculated by adding up all forms of energy in the system.
What states for "open systems" with no external source or sink of energy,that a system's energy is constant unless energy is transferred in or out by mechanical work or heat
---
Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The second generation of the system, officially called the BeiDou Navigation Satellite System (BDS) and also known as COMPASS or BeiDou-2, will be a global satellite navigation system consisting of 35 satellites, and is under construction as of January 2015[update]. It became operational in China in December 2011, with 10 satellites in use, and began offering services to customers in the Asia-Pacific region in December 2012. It is planned to begin serving global customers upon its completion in 2020.
When did the BeiDou-2 begin construction?
A: January 2015


Context and question: To the east of the county are upland areas leading to the Pennines. North of the Ribble is Beacon Fell Country Park and the Forest of Bowland, another AONB. Much of the lowland in this area is devoted to dairy farming and cheesemaking, whereas the higher ground is more suitable for sheep, and the highest ground is uncultivated moorland. The valleys of the River Ribble and its tributary the Calder form a large gap to the west of the Pennines, overlooked by Pendle Hill. Most of the larger Lancashire towns are in these valleys South of the Ribble are the West Pennine Moors and the Forest of Rossendale where former cotton mill towns are in deep valleys. The Lancashire Coalfield, largely in modern-day Greater Manchester, extended into Merseyside and to Ormskirk, Chorley, Burnley and Colne in Lancashire.
What does AONB stand for?
Answer: unanswerable


Question: The album garnered critical acclaim. Ray of Light was honored with four Grammy Awards. In 2003, Slant Magazine called it "one of the great pop masterpieces of the '90s" and Rolling Stone listed it among "The 500 Greatest Albums of All Time". Commercially, the album peaked at number one in numerous countries and sold more than 16 million copies worldwide. The album's first single, "Frozen", became Madonna's first single to debut at number one in the UK, while in the U.S. it became her sixth number-two single, setting another record for Madonna as the artist with the most number two hits. The second single, "Ray of Light", debuted at number five on the Billboard Hot 100.
Is there an answer to this question: The single Ray of Light debut at which number of the Billboard Hot 100?

Answer: five


At E3 2007, Sony was able to show a number of their upcoming video games for PlayStation 3, including Heavenly Sword, Lair, Ratchet & Clank Future: Tools of Destruction, Warhawk and Uncharted: Drake's Fortune; all of which were released in the third and fourth quarters of 2007. They also showed off a number of titles that were set for release in 2008 and 2009; most notably Killzone 2, Infamous, Gran Turismo 5 Prologue, LittleBigPlanet and SOCOM: U.S. Navy SEALs Confrontation. A number of third-party exclusives were also shown, including the highly anticipated Metal Gear Solid 4: Guns of the Patriots, alongside other high-profile third-party titles such as Grand Theft Auto IV, Call of Duty 4: Modern Warfare, Assassin's Creed, Devil May Cry 4 and Resident Evil 5. Two other important titles for PlayStation 3, Final Fantasy XIII and Final Fantasy Versus XIII, were shown at TGS 2007 in order to appease the Japanese market.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What year was Uncharted:Tools of Destruction released for PS3?
Ah, so..
unanswerable