sentence-transformers/squad huggingface dataset:
Passage: The word phonology comes from the Greek φωνή, phōnḗ, "voice, sound," and the suffix -logy (which is from Greek λόγος, lógos, "word, speech, subject of discussion"). Definitions of the term vary. Nikolai Trubetzkoy in Grundzüge der Phonologie (1939) defines phonology as "the study of sound pertaining to the system of language," as opposed to phonetics, which is "the study of sound pertaining to the act of speech" (the distinction between language and speech being basically Saussure's distinction between langue and parole). More recently, Lass (1998) writes that phonology refers broadly to the subdiscipline of linguistics concerned with the sounds of language, while in more narrow terms, "phonology proper is concerned with the function, behavior and organization of sounds as linguistic items." According to Clark et al. (2007), it means the systematic use of sound to encode meaning in any spoken human language, or the field of linguistics studying this use.

Question: What language does phonology as a word come from?

Question: What Greek word is -logy derived from?

Question: Who in 1939 defined phonology?

Question: A distinction was drawn between language and what?

Question: When did Lass write about phonology?
Passage: The history of phonology may be traced back to the Ashtadhyayi, the Sanskrit grammar composed by Pāṇini in the 4th century BC. In particular the Shiva Sutras, an auxiliary text to the Ashtadhyayi, introduces what can be considered a list of the phonemes of the Sanskrit language, with a notational system for them that is used throughout the main text, which deals with matters of morphology, syntax and semantics.

Question: What type of grammar was phonology first a part of?

Question: What is the name of ancient Sanskrit grammar?

Question: Who first composed the Ashtadhyayi?

Question: During what time period did Panini do his work?

Question: What other text was related to the Ashtadhyayi?
Passage: The Polish scholar Jan Baudouin de Courtenay (together with his former student Mikołaj Kruszewski) introduced the concept of the phoneme in 1876, and his work, though often unacknowledged, is considered to be the starting point of modern phonology. He also worked on the theory of phonetic alternations (what is now called allophony and morphophonology), and had a significant influence on the work of Ferdinand de Saussure.

Question: When was the phoneme as a concept introduced?

Question: Who was Jan Baudouin de Courtenay's student?

Question: What nationality was de Courtenay?

Question: What was de Courtenay's profession?

Question: Who was influenced by Jan Baudouin de Courtenay?
Passage: An influential school of phonology in the interwar period was the Prague school. One of its leading members was Prince Nikolai Trubetzkoy, whose Grundzüge der Phonologie (Principles of Phonology), published posthumously in 1939, is among the most important works in the field from this period. Directly influenced by Baudouin de Courtenay, Trubetzkoy is considered the founder of morphophonology, although this concept had also been recognized by de Courtenay. Trubetzkoy also developed the concept of the archiphoneme. Another important figure in the Prague school was Roman Jakobson, who was one of the most prominent linguists of the 20th century.

Question: What was Nikolai Trubetzkoy's publication?

Question: When was Principles of Phonology published?

Question: What is Trubetzkoy considered to have founded?

Question: What school was Trubetzkoy a member of?

Question: What was Trubetzkoy's title?
Passage: In 1968 Noam Chomsky and Morris Halle published The Sound Pattern of English (SPE), the basis for generative phonology. In this view, phonological representations are sequences of segments made up of distinctive features. These features were an expansion of earlier work by Roman Jakobson, Gunnar Fant, and Morris Halle. The features describe aspects of articulation and perception, are from a universally fixed set, and have the binary values + or −. There are at least two levels of representation: underlying representation and surface phonetic representation. Ordered phonological rules govern how underlying representation is transformed into the actual pronunciation (the so-called surface form). An important consequence of the influence SPE had on phonological theory was the downplaying of the syllable and the emphasis on segments. Furthermore, the generativists folded morphophonology into phonology, which both solved and created problems.

Question: When was The Sound Pattern of English published?

Question: Other than Chomsky who else published The Sound Pattern of English?

Question: Besides the syllable what was downplayed as a result of SPE's influence on phonological theory?

Question: What other discipline was combined with phonology by the generativists?
Passage: Natural phonology is a theory based on the publications of its proponent David Stampe in 1969 and (more explicitly) in 1979. In this view, phonology is based on a set of universal phonological processes that interact with one another; which ones are active and which are suppressed is language-specific. Rather than acting on segments, phonological processes act on distinctive features within prosodic groups. Prosodic groups can be as small as a part of a syllable or as large as an entire utterance. Phonological processes are unordered with respect to each other and apply simultaneously (though the output of one process may be the input to another). The second most prominent natural phonologist is Patricia Donegan (Stampe's wife); there are many natural phonologists in Europe, and a few in the U.S., such as Geoffrey Nathan. The principles of natural phonology were extended to morphology by Wolfgang U. Dressler, who founded natural morphology.

Question: Whose publications started the theory of Natural phonology?

Question: According to Stampe what is phonology based on?

Question: Aside from being active what other condition can the universal phonological processes exist in?

Question: Who is the number two natural phonologist?

Question: Who was the founder of natural morphology?
Passage: In 1976 John Goldsmith introduced autosegmental phonology. Phonological phenomena are no longer seen as operating on one linear sequence of segments, called phonemes or feature combinations, but rather as involving some parallel sequences of features which reside on multiple tiers. Autosegmental phonology later evolved into feature geometry, which became the standard theory of representation for theories of the organization of phonology as different as lexical phonology and optimality theory.

Question: Who founded autosegmental phonology?

Question: When did John Goldsmith share his work?

Question: What did Autosegmental phonology morph into?
Passage: Government phonology, which originated in the early 1980s as an attempt to unify theoretical notions of syntactic and phonological structures, is based on the notion that all languages necessarily follow a small set of principles and vary according to their selection of certain binary parameters. That is, all languages' phonological structures are essentially the same, but there is restricted variation that accounts for differences in surface realizations. Principles are held to be inviolable, though parameters may sometimes come into conflict. Prominent figures in this field include Jonathan Kaye, Jean Lowenstamm, Jean-Roger Vergnaud, Monik Charette, and John Harris.

Question: When was Government phonology first seen?

Question: What is responsible for differences in surface realizations according to Government phonology?

Question: Jonathan Kaye is an important person in what form of phonology?
Passage: In a course at the LSA summer institute in 1991, Alan Prince and Paul Smolensky developed optimality theory—an overall architecture for phonology according to which languages choose a pronunciation of a word that best satisfies a list of constraints ordered by importance; a lower-ranked constraint can be violated when the violation is necessary in order to obey a higher-ranked constraint. The approach was soon extended to morphology by John McCarthy and Alan Prince, and has become a dominant trend in phonology. The appeal to phonetic grounding of constraints and representational elements (e.g. features) in various approaches has been criticized by proponents of 'substance-free phonology', especially Mark Hale and Charles Reiss.

Question: When did Prince and Smolensky develop their theory?

Question: Where was optimality theory created?

Question: Aside from Alan Prince who brought optimality theory to morphology?

Question: Who were prominent critics of optimality theory?
Passage: Broadly speaking, government phonology (or its descendant, strict-CV phonology) has a greater following in the United Kingdom, whereas optimality theory is predominant in the United States.[citation needed]

Question: What followed government phonology?

Question: Where is government phonology popular?

Question: What theory is seen more in the US?
Passage: An integrated approach to phonological theory that combines synchronic and diachronic accounts to sound patterns was initiated with Evolutionary Phonology in recent years.

Question: What is Evolutionary Phonology an integrated approach to?

Question: What is combined to sound patterns by Evolutionary Phonology?

Question: When did Evolutionary Phonology come into being?

Question: What sort of approach did Evolutionary Phonology take?
Passage: An important part of traditional, pre-generative schools of phonology is studying which sounds can be grouped into distinctive units within a language; these units are known as phonemes. For example, in English, the "p" sound in pot is aspirated (pronounced [pʰ]) while that in spot is not aspirated (pronounced [p]). However, English speakers intuitively treat both sounds as variations (allophones) of the same phonological category, that is of the phoneme /p/. (Traditionally, it would be argued that if an aspirated [pʰ] were interchanged with the unaspirated [p] in spot, native speakers of English would still hear the same words; that is, the two sounds are perceived as "the same" /p/.) In some other languages, however, these two sounds are perceived as different, and they are consequently assigned to different phonemes. For example, in Thai, Hindi, and Quechua, there are minimal pairs of words for which aspiration is the only contrasting feature (two words can have different meanings but with the only difference in pronunciation being that one has an aspirated sound where the other has an unaspirated one).

Question: What are the units called that traditional phonology studies?

Question: What is another word for variations?

Question: What is the opposite of aspirated?
Passage: Part of the phonological study of a language therefore involves looking at data (phonetic transcriptions of the speech of native speakers) and trying to deduce what the underlying phonemes are and what the sound inventory of the language is. The presence or absence of minimal pairs, as mentioned above, is a frequently used criterion for deciding whether two sounds should be assigned to the same phoneme. However, other considerations often need to be taken into account as well.

Question: What type of language study involves trying to deduce underlying phonomes?

Question: Aside from finding out what underlying phonemes are there what does the phonological study of a language try to find out about the language?

Question: What kind of speaker data does studying a language phonologically involve examining?
Passage: The particular contrasts which are phonemic in a language can change over time. At one time, [f] and [v], two sounds that have the same place and manner of articulation and differ in voicing only, were allophones of the same phoneme in English, but later came to belong to separate phonemes. This is one of the main factors of historical change of languages as described in historical linguistics.

Question: What kind of linguistics describes how factors of languages change in history?

Question: With the passage of time what particular things phonemic in a language are known to change?

Question: In the past sounds that now belong to separate phonemes were allophones of what kind of phoneme in English?
Passage: The findings and insights of speech perception and articulation research complicate the traditional and somewhat intuitive idea of interchangeable allophones being perceived as the same phoneme. First, interchanged allophones of the same phoneme can result in unrecognizable words. Second, actual speech, even at a word level, is highly co-articulated, so it is problematic to expect to be able to splice words into simple segments without affecting speech perception.

Question: How do speech perception and articulation findings and insights affect previous and more traditional ideas?

Question: How does interchanging allophones of the same pheneme render words?

Question: What does splicing words affect?
Passage: Different linguists therefore take different approaches to the problem of assigning sounds to phonemes. For example, they differ in the extent to which they require allophones to be phonetically similar. There are also differing ideas as to whether this grouping of sounds is purely a tool for linguistic analysis, or reflects an actual process in the way the human brain processes a language.

Question: What are assigned to phonemes by different linguists?

Question: What part of a human does language processing?

Question: The phonetical similarity of what thing causes disagreements between linguists?
Passage: Since the early 1960s, theoretical linguists have moved away from the traditional concept of a phoneme, preferring to consider basic units at a more abstract level, as a component of morphemes; these units can be called morphophonemes, and analysis using this approach is called morphophonology.

Question: When did theoretical linguists turn away traditional phoneme concepts?

Question: On what level do theoretical linguists consider basic units?

Question: What is a name for the basic morpheme unit?

Question: What is the act of analyzing morphophones called?

Question: What kind of linguists are leaving the old methods behind?
Passage: In addition to the minimal units that can serve the purpose of differentiating meaning (the phonemes), phonology studies how sounds alternate, i.e. replace one another in different forms of the same morpheme (allomorphs), as well as, for example, syllable structure, stress, feature geometry, accent, and intonation.

Question: What do phonemes differentiate?

Question: Aside from phonemes what is studied by phonology?

Question: The study of syllable structure is part of what discipline?
Passage: Phonology also includes topics such as phonotactics (the phonological constraints on what sounds can appear in what positions in a given language) and phonological alternation (how the pronunciation of a sound changes through the application of phonological rules, sometimes in a given order which can be feeding or bleeding,) as well as prosody, the study of suprasegmentals and topics such as stress and intonation.

Question: Under what topic is suprasegmentals studied?

Question: Aside from bleeding what is an order of rules that define how pronunciation of a sound changes?

Question: Phonotactics, phonological alternation and prosody are topics contained in what discipline?

Question: Stress and intonation are studied under what topic?
Passage: The principles of phonological analysis can be applied independently of modality because they are designed to serve as general analytical tools, not language-specific ones. The same principles have been applied to the analysis of sign languages (see Phonemes in sign languages), even though the sub-lexical units are not instantiated as speech sounds.

Question: Instead of being language-specific what kind of tools are the principles of phonological analysis designed to be?

Question: What other types of language have the phonological analysis principles been applied to?

Question: What are the principles of phonological analysis able to be applied separately from?

Question: In sign languages what are not represented as instances of speech sounds?
Passage: Conventionally, a computer consists of at least one processing element, typically a central processing unit (CPU), and some form of memory. The processing element carries out arithmetic and logic operations, and a sequencing and control unit can change the order of operations in response to stored information. Peripheral devices allow information to be retrieved from an external source, and the result of operations saved and retrieved.

Question: In computer terms, what does CPU stand for?

Question: What are the devices called that are from an external source?

Question: What are two things that a computer always has?
Passage: Mechanical analog computers started appearing in the first century and were later used in the medieval era for astronomical calculations. In World War II, mechanical analog computers were used for specialized military applications such as calculating torpedo aiming. During this time the first electronic digital computers were developed. Originally they were the size of a large room, consuming as much power as several hundred modern personal computers (PCs).

Question: What were analog computers originally used for?

Question: During what war were computers first used for military applications?

Question: In computer terms, what does PC stand for?

Question: During what war were the first digital computers invented?
Passage: Modern computers based on integrated circuits are millions to billions of times more capable than the early machines, and occupy a fraction of the space. Computers are small enough to fit into mobile devices, and mobile computers can be powered by small batteries. Personal computers in their various forms are icons of the Information Age and are generally considered as "computers". However, the embedded computers found in many devices from MP3 players to fighter aircraft and from electronic toys to industrial robots are the most numerous.

Question: Computers in today's age are based on what that make them much faster than earlier computers?

Question: How much more powerful are modern computers versus early computers?
Passage: The first known use of the word "computer" was in 1613 in a book called The Yong Mans Gleanings by English writer Richard Braithwait: "I haue read the truest computer of Times, and the best Arithmetician that euer breathed, and he reduceth thy dayes into a short number." It referred to a person who carried out calculations, or computations. The word continued with the same meaning until the middle of the 20th century. From the end of the 19th century the word began to take on its more familiar meaning, a machine that carries out computations.

Question: When was the first known use of the word "computer"?

Question: In which book, was the term "computer" first used?

Question: Who was the author of the book, The Yong Mans Gleanings?

Question: From the end of what century, did the word "computer" take its well known meaning of today?
Passage: Devices have been used to aid computation for thousands of years, mostly using one-to-one correspondence with fingers. The earliest counting device was probably a form of tally stick. Later record keeping aids throughout the Fertile Crescent included calculi (clay spheres, cones, etc.) which represented counts of items, probably livestock or grains, sealed in hollow unbaked clay containers. The use of counting rods is one example.

Question: The earliest device to help count was what?

Question: Calculi during the Fertile Crescent refers to what?
Passage: The abacus was initially used for arithmetic tasks. The Roman abacus was used in Babylonia as early as 2400 BC. Since then, many other forms of reckoning boards or tables have been invented. In a medieval European counting house, a checkered cloth would be placed on a table, and markers moved around on it according to certain rules, as an aid to calculating sums of money.

Question: What was the abacus first used for?

Question: When was the Roman abacus first used?

Question: Where was the Roman abacus first used?

Question: In medieval Europe was was placed on a table to help count money?

Question: A checkered cloth on a table was used in medieval Europe to help count what?
Passage: The Antikythera mechanism is believed to be the earliest mechanical analog "computer", according to Derek J. de Solla Price. It was designed to calculate astronomical positions. It was discovered in 1901 in the Antikythera wreck off the Greek island of Antikythera, between Kythera and Crete, and has been dated to circa 100 BC. Devices of a level of complexity comparable to that of the Antikythera mechanism would not reappear until a thousand years later.

Question: What is thought to be the first mechanical analog computer?

Question: When was the Antikythera mechanism discovered?

Question: Where was the Antikythera mechanism found in 1901?

Question: Where is the Greek Island of Antikythera located between?

Question: The Antikythera mechanism was thought to be the first computer according to whom?
Passage: Many mechanical aids to calculation and measurement were constructed for astronomical and navigation use. The planisphere was a star chart invented by Abū Rayhān al-Bīrūnī in the early 11th century. The astrolabe was invented in the Hellenistic world in either the 1st or 2nd centuries BC and is often attributed to Hipparchus. A combination of the planisphere and dioptra, the astrolabe was effectively an analog computer capable of working out several different kinds of problems in spherical astronomy. An astrolabe incorporating a mechanical calendar computer and gear-wheels was invented by Abi Bakr of Isfahan, Persia in 1235. Abū Rayhān al-Bīrūnī invented the first mechanical geared lunisolar calendar astrolabe, an early fixed-wired knowledge processing machine with a gear train and gear-wheels, circa 1000 AD.

Question: Who invented the planisphere?

Question: Who is thought to have invented the astrolabe in history?

Question: The astrolabe was a combination of what two devices in history?

Question: The first astrolabe with gear-wheels was invented when?

Question: The first astrolabe with a mechanical calendar was invented where?
Passage: The sector, a calculating instrument used for solving problems in proportion, trigonometry, multiplication and division, and for various functions, such as squares and cube roots, was developed in the late 16th century and found application in gunnery, surveying and navigation.

Question: The sector, a calculating instrument, was invented during what century?
Passage: The slide rule was invented around 1620–1630, shortly after the publication of the concept of the logarithm. It is a hand-operated analog computer for doing multiplication and division. As slide rule development progressed, added scales provided reciprocals, squares and square roots, cubes and cube roots, as well as transcendental functions such as logarithms and exponentials, circular and hyperbolic trigonometry and other functions. Aviation is one of the few fields where slide rules are still in widespread use, particularly for solving time–distance problems in light aircraft. To save space and for ease of reading, these are typically circular devices rather than the classic linear slide rule shape. A popular example is the E6B.

Question: When was the slide rule first invented?

Question: What is the slide rule used for?

Question: What industry are slide rules still used today?