This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

Example Input: Passage: In the Romantic era, the modern piano, with a more powerful, sustained tone and a wider range took over from the more delicate-sounding fortepiano. In the orchestra, the existing Classical instruments and sections were retained (string section, woodwinds, brass and percussion), but these sections were typically expanded to make a fuller, bigger sound. For example, while a Baroque orchestra may have had two double bass players, a Romantic orchestra could have as many as ten. "As music grew more expressive, the standard orchestral palette just wasn't rich enough for many Romantic composers." New woodwind instruments were added, such as the contrabassoon, bass clarinet and piccolo and new percussion instruments were added, including xylophones, drums, celestes (a bell-like keyboard instrument), large orchestral harps, bells, and triangles and even wind machines for sound effects. Question: What is a celestes?
Example Output: a bell-like keyboard instrument

Example Input: Passage: The Valencian economy recovered during the 18th century with the rising manufacture of woven silk and ceramic tiles. The Palau de Justicia is an example of the affluence manifested in the most prosperous times of Bourbon rule (17581802) during the rule of Charles III. The 18th century was the age of the Enlightenment in Europe, and its humanistic ideals influenced such men as Gregory Maians and Perez Bayer in Valencia, who maintained correspondence with the leading French and German thinkers of the time. In this atmosphere of the exaltation of ideas the Economic Society of Friends of the Country (Societat Economica d'Amics del Pais) was founded in 1776; it introduced numerous improvements in agriculture and industry and promoted various cultural, civic, and economic institutions in Valencia. Question: Who in Valencia was influenced by the age of Enlightenment's ideas?
Example Output: Gregory Maians and Perez Bayer

Example Input: Passage: In a further refinement of the direct use of probabilistic modelling, statistical estimates can be coupled to an algorithm called arithmetic coding. Arithmetic coding is a more modern coding technique that uses the mathematical calculations of a finite-state machine to produce a string of encoded bits from a series of input data symbols. It can achieve superior compression to other techniques such as the better-known Huffman algorithm. It uses an internal memory state to avoid the need to perform a one-to-one mapping of individual input symbols to distinct representations that use an integer number of bits, and it clears out the internal memory only after encoding the entire string of data symbols. Arithmetic coding applies especially well to adaptive data compression tasks where the statistics vary and are context-dependent, as it can be easily coupled with an adaptive model of the probability distribution of the input data. An early example of the use of arithmetic coding was its use as an optional (but not widely used) feature of the JPEG image coding standard. It has since been applied in various other designs including H.264/MPEG-4 AVC and HEVC for video coding. Question: What can achieve superior compression?
Example Output:
Arithmetic coding