Extract the answer to the question from the following context. Question: Which of the following is not a potential value for a bit: 0, 3 or 1? Context: USB data is transmitted by toggling the data lines between the J state and the opposite K state. USB encodes data using the NRZI line coding; a 0 bit is transmitted by toggling the data lines from J to K or vice versa, while a 1 bit is transmitted by leaving the data lines as-is. To ensure a minimum density of signal transitions remains in the bitstream, USB uses bit stuffing; an extra 0 bit is inserted into the data stream after any appearance of six consecutive 1 bits. Seven consecutive received 1 bits is always an error. USB 3.0 has introduced additional data transmission encodings.
Ans: 3

Extract the answer to the question from the following context. Question: Why isn't Old Dutch the Original language of the Franks? Context: Old Low Franconian or Old Dutch is regarded as the primary stage in the development of a separate Dutch language. The "Low" in Old Low Franconian refers to the Frankish spoken in the Low Countries where it was not influenced by the High German consonant shift, as opposed to Central and high Franconian in Germany. The latter would as a consequence evolve with Allemanic into Old High German. At more or less the same time the Ingvaeonic nasal spirant law led to the development of Old Saxon, Old Frisian (Anglo-Frisian) and Old English (Anglo-Saxon). Hardly influenced by either development, Old Dutch remained close to the original language of the Franks, the people that would rule Europe for centuries. The language however, did experienced developments on its own, like final-obstruent devoicing in a very early stage. In fact, by judging from the find at Bergakker, it would seem that the language already experienced this characteristic during the Old Frankish period.
Ans: experienced developments on its own

Extract the answer to the question from the following context. Question: In which year was total investment in renewable energy higher than $250 billion, 2012 or 2011? Context: Total investment in renewable energy (including small hydro-electric projects) was $244 billion in 2012, down 12% from 2011 mainly due to dramatically lower solar prices and weakened US and EU markets. As a share of total investment in power plants, wind and solar PV grew from 14% in 2000 to over 60% in 2012. The top countries for investment in recent years were China, Germany, Spain, the United States, Italy, and Brazil. Renewable energy companies include BrightSource Energy, First Solar, Gamesa, GE Energy, Goldwind, Sinovel, Trina Solar, Vestas and Yingli.
Ans: 2011

Extract the answer to the question from the following context. Question: Shoes are worn with part of the body? Context: The example Leibniz uses involves two proposed universes situated in absolute space. The only discernible difference between them is that the latter is positioned five feet to the left of the first. The example is only possible if such a thing as absolute space exists. Such a situation, however, is not possible, according to Leibniz, for if it were, a universe's position in absolute space would have no sufficient reason, as it might very well have been anywhere else. Therefore, it contradicts the principle of sufficient reason, and there could exist two distinct universes that were in all ways indiscernible, thus contradicting the identity of indiscernibles.
Ans: feet