input: Please answer the following: I know that the answer to the question "Who is unique in secretions?" is in "Like the reptiles, birds are primarily uricotelic, that is, their kidneys extract nitrogenous waste from their bloodstream and excrete it as uric acid instead of urea or ammonia through the ureters into the intestine. Birds do not have a urinary bladder or external urethral opening and (with exception of the ostrich) uric acid is excreted along with feces as a semisolid waste. However, birds such as hummingbirds can be facultatively ammonotelic, excreting most of the nitrogenous wastes as ammonia. They also excrete creatine, rather than creatinine like mammals. This material, as well as the output of the intestines, emerges from the bird's cloaca. The cloaca is a multi-purpose opening: waste is expelled through it, most birds mate by joining cloaca, and females lay eggs from it. In addition, many species of birds regurgitate pellets. Males within Palaeognathae (with the exception of the kiwis), the Anseriformes (with the exception of screamers), and in rudimentary forms in Galliformes (but fully developed in Cracidae) possess a penis, which is never present in Neoaves. The length is thought to be related to sperm competition. When not copulating, it is hidden within the proctodeum compartment within the cloaca, just inside the vent. The digestive system of birds is unique, with a crop for storage and a gizzard that contains swallowed stones for grinding food to compensate for the lack of teeth. Most birds are highly adapted for rapid digestion to aid with flight. Some migratory birds have adapted to use protein from many parts of their bodies, including protein from the intestines, as additional energy during migration.". Can you tell me what it is?
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output: hummingbirds

input: Please answer the following: I know that the answer to the question "Which energy source accounted for less than 30% of Oklahoma's generated electricity, coal or natural gas?" is in "Oklahoma is the nation's third-largest producer of natural gas, fifth-largest producer of crude oil, and has the second-greatest number of active drilling rigs, and ranks fifth in crude oil reserves. While the state ranked eighth for installed wind energy capacity in 2011, it is at the bottom of states in usage of renewable energy, with 94 percent of its electricity being generated by non-renewable sources in 2009, including 25 percent from coal and 46 percent from natural gas. Oklahoma has no nuclear power. Ranking 13th for total energy consumption per capita in 2009, Oklahoma's energy costs were 8th lowest in the nation.". Can you tell me what it is?
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output: coal

input: Please answer the following: I know that the answer to the question "What did the opening of new lands and granting the use of lands do?" is in "As culture flourished, so did decentralization. Whereas the first phase of shoen development in the early Heian period had seen the opening of new lands and the granting of the use of lands to aristocrats and religious institutions, the second phase saw the growth of patrimonial "house governments," as in the old clan system. (In fact, the form of the old clan system had remained largely intact within the great old centralized government.) New institutions were now needed in the face of social, economic, and political changes. The Taiho Code lapsed, its institutions relegated to ceremonial functions. Family administrations now became public institutions. As the most powerful family, the Fujiwara governed Japan and determined the general affairs of state, such as succession to the throne. Family and state affairs were thoroughly intermixed, a pattern followed among other families, monasteries, and even the imperial family. Land management became the primary occupation of the aristocracy, not so much because direct control by the imperial family or central government had declined but more from strong family solidarity and a lack of a sense of Japan as a single nation.". Can you tell me what it is?
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output: decentralization

input: Please answer the following: I know that the answer to the question "Which of the following does not accurately describe the Northwestern University Law Review: a scholarly legal publication, an abbreviation or a student organization?" is in "The Northwestern University Law Review is a scholarly legal publication and student organization at Northwestern University School of Law. The Law Review's primary purpose is to publish a journal of broad legal scholarship. The Law Review publishes four issues each year. Student editors make the editorial and organizational decisions and select articles submitted by professors, judges, and practitioners, as well as student pieces. The Law Review recently extended its presence onto the web, and now publishes scholarly pieces weekly on the Colloquy. The Northwestern Journal of Technology and Intellectual Property is a law review published by an independent student organization at Northwestern University School of Law. Its Bluebook abbreviation is Nw. J. Tech. & Intell. Prop. The current editor-in-chief is Aisha Lavinier.". Can you tell me what it is?
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output:
abbreviation