Input: Read this: Renewable energy technologies are getting cheaper, through technological change and through the benefits of mass production and market competition. A 2011 IEA report said: "A portfolio of renewable energy technologies is becoming cost-competitive in an increasingly broad range of circumstances, in some cases providing investment opportunities without the need for specific economic support," and added that "cost reductions in critical technologies, such as wind and solar, are set to continue." As of 2011[update], there have been substantial reductions in the cost of solar and wind technologies:
Question: As of what year when have there not been substantial reductions in the cost of solar and wind technologies?

Output: unanswerable


Input: Read this: His biography of Anthony the Great entitled Life of Antony(Βίος καὶ Πολιτεία Πατρὸς Ἀντωνίου, Vita Antonii) became his most widely-read work. Translated into several languages, it played an important role in the spreading of the ascetic ideal in Eastern and Western Christianity. Depicting Anthony as an illiterate and holy man who through his existence in a primordial landscape has an absolute connection to the divine truth, the biography also resembles the life of his biographer Athanasius. It later served as an inspiration to Christian monastics in both the East and the West. The so-called Athanasian Creed dates from well after Athanasius's death and draws upon the phraseology of Augustine's De trinitate.
Question: Life of Antony played an important role in the spreading of ascetic ideals in what religion?

Output: Eastern and Western Christianity


Input: Read this: Between 1993 and 1996, the FBI increased its counter-terrorism role in the wake of the first 1993 World Trade Center bombing in New York City, New York; the 1995 Oklahoma City bombing in Oklahoma City, Oklahoma; and the arrest of the Unabomber in 1996. Technological innovation and the skills of FBI Laboratory analysts helped ensure that the three cases were successfully prosecuted. Justice Department investigations into the FBI's roles in the Ruby Ridge and Waco incidents were found to be obstructed by agents within the Bureau. During the 1996 Summer Olympics in Atlanta, Georgia, the FBI was criticized for its investigation of the Centennial Olympic Park bombing. It has settled a dispute with Richard Jewell, who was a private security guard at the venue, along with some media organizations, in regard to the leaking of his name during the investigation.
Question: When did the second World Trade Center bombing occur?

Output: unanswerable


Input: Read this: Due to the tree structure of the filter bank, pre-echo problems are made worse, as the combined impulse response of the two filter banks does not, and cannot, provide an optimum solution in time/frequency resolution. Additionally, the combining of the two filter banks' outputs creates aliasing problems that must be handled partially by the "aliasing compensation" stage; however, that creates excess energy to be coded in the frequency domain, thereby decreasing coding efficiency.[citation needed]
Question: The need to code excess energy in the frequency domain decreases what kind of efficiency?

Output:
coding