Information:  - Esperanto (or ; in Esperanto: ) is a constructed international auxiliary language. It is the most widely spoken constructed language in the world. The Polish-Jewish ophthalmologist L. L. Zamenhof published the first book detailing Esperanto, "," on 26 July 1887. The name of Esperanto derives from " ("" translates as "one who hopes"), the pseudonym under which Zamenhof published Unua Libro.  - Dr. Esperanto's International Language, usually referred to as Unua Libro, was the first publication to describe Esperanto, then called the International Language. It was first published in Russian on July 26, 1887 in Warsaw, by Polish oculist L. L. Zamenhof. Over the next few years editions were published in Polish, Russian, Hebrew, French, German, and English. This booklet included the Lord's Prayer, some Bible verses, a letter, poetry, the sixteen rules of grammar and 900 roots of vocabulary. In the book Zamenhof declared, "an international language, like a national one, is common property" and renounced all rights to the language, effectively putting it into the public domain. Zamenhof signed the work as "Doktoro Esperanto" (Doctor One-Who-Hopes). Those who learned the new language began to call it "Esperanto" after Zamenhof's pen name, and Esperanto soon became the official name of the language.  - Warsaw (; see also other names) is the capital and largest city of Poland. It stands on the Vistula River in east-central Poland, roughly from the Baltic Sea and from the Carpathian Mountains. Its population is estimated at 1.750 million residents within a greater metropolitan area of 3.105 million residents, which makes Warsaw the 9th most-populous capital city in the European Union. The city limits cover , while the metropolitan area covers .  - Proto - Esperanto ( Esperanto : pra - Esperanto ) is the modern term for any of the stages in the evolution of L. L. Zamenhof 's language project , prior to the publication of his Unua Libro in 1887 .  - An international auxiliary language (sometimes abbreviated as IAL or auxlang) or interlanguage is a language meant for communication between people from different nations who do not share a common first language. An auxiliary language is primarily a second language.  - Language is the ability to acquire and use complex systems of communication, particularly the human ability to do so, and a language is any specific example of such a system. The scientific study of language is called linguistics. Questions concerning the philosophy of language, such as whether words can represent experience, have been debated since Gorgias and Plato in Ancient Greece. Thinkers such as Rousseau have argued that language originated from emotions while others like Kant have held that it originated from rational and logical thought. 20th-century philosophers such as Wittgenstein argued that philosophy is really the study of language. Major figures in linguistics include Ferdinand de Saussure and Noam Chomsky.  - Poetry (the term derives from a variant of the Greek term, "poiesis", "making") is a form of literature that uses aesthetic and rhythmic qualities of languagesuch as phonaesthetics, sound symbolism, and metreto evoke meanings in addition to, or in place of, the prosaic ostensible meaning.  - The Bible (from Koine Greek  , "tà biblía", "the books") is a collection of sacred texts or scriptures that Jews and Christians consider to be a product of divine inspiration and a record of the relationship between God and humans.  - A planned or constructed language (sometimes called a conlang) is a language whose phonology, grammar, and vocabulary have been consciously devised for human or human-like communication, instead of having developed naturally. It is also referred to as an artificial or invented language. There are many possible reasons to create a constructed language, such as: to ease human communication (see international auxiliary language and code), to give fiction or an associated constructed setting an added layer of realism, for experimentation in the fields of linguistics, cognitive science, and machine learning, for artistic creation, and for language games.  - The Lord's Prayer (also called the Our Father or Pater Noster among other names) is a venerated Christian prayer that, according to the New Testament, was taught by Jesus to his disciples. Two versions of it are recorded: a longer form in the Gospel of Matthew as part of the Sermon on the Mount, and a shorter form in the Gospel of Luke as a response by Jesus to a request by "one of his disciples" to teach them "to pray as John taught his disciples." The context of the prayer in Matthew is a discourse deploring people who pray ostentatiously.  - Ludwik Lejzer Zamenhof (), usually credited as L. L. Zamenhof, was a Polish-Jewish medical doctor, inventor, and writer. He is most widely known for creating Esperanto, the most successful constructed language in the world. He grew up fascinated by the idea of a world without war and believed that this could happen with the help of a new international auxiliary language, which he first developed in 1873 while still in school.  - The term public domain has two senses of meaning. Anything published is out in the public domain in the sense that it is available to the public. Once published news and information in books is in the public domain, although they may also be copyrighted. In the sense of intellectual property, works in the public domain are those whose exclusive intellectual property rights have expired, have been forfeited, or are inapplicable. For example, the works of Shakespeare and Beethoven, and most of the early silent films, are all now in the public domain by either being created before copyrights existed or leaving the copyright term. Examples for works not covered by copyright which are therefore in the public domain, are the formulae of Newtonian physics, cooking recipes and all software before 1974. Examples for works actively dedicated into public domain by their authors are reference implementations of cryptographic algorithms, NIH's ImageJ, and the CIA's "World Factbook". The term is not normally applied to situations where the creator of a work retains residual rights, in which case use of the work is referred to as "under license" or "with permission".    Given the information above, choose from the list below the object entity that exhibits the relation 'instance of' with the subject 'proto-esperanto'.  Choices: - 1  - bible  - book  - capital  - case  - century  - city  - code  - collection  - complex  - constructed language  - discourse  - gospel  - grammar  - humans  - idea  - information  - international auxiliary language  - july  - language  - letter  - machine  - metre  - news  - official  - part  - pen name  - people  - poetry  - prayer  - property  - public  - publication  - relationship  - river  - software  - sound  - study  - system  - term  - the city  - two  - union  - work
Answer:
constructed language