Information:  - The AEK-971 is a Soviet / Russian selective fire assault rifle that was developed at the Kovrov Mechanical Plant (KMZ) by chief designer Sergey Koksharov in the late 1970s and 1980s. The primary model, the AEK-971, uses the 5.45×39mm round fed from standard 30-round or larger box magazines used by the AK-74, AK-74M, and similar weapons.  - The 5.45×39mm cartridge is a rimless bottlenecked rifle cartridge. It was introduced into service in 1974 by the Soviet Union for use with the new AK-74 assault rifle. It gradually supplemented, then largely replaced the 7.62×39mm round in service.  - Kovrov is a city in Vladimir Oblast, Russia, located on the right bank of the Klyazma River (a tributary of the Oka). Kovrov's population as of the 2010 Census was 145,214; down from 155,499 recorded in the 2002 Census, and further down from 159,942 recorded in the 1989 Census). In terms of population, it is the second-largest city in Vladimir Oblast (after Vladimir). In 1977, Kovrov's population had been estimated at 140,000.  - The AK-107 is a Russian 5.45×39mm assault rifle developed from the AK-100-series. It features a "balanced" operating system, similar to that used in the AEK-971. In this case, the designation AK does not indicate "Avtomat Kalashnikova" but "Alexandrov/Kalashnikov". The revised designation indicates the incorporation of a new gas system, designed by Youriy Alexandrov, for Kalashnikov-pattern rifles.  - The AO - 38 is a 5.45 × 39mm assault rifle and AK derivative designed by Peter Andreevich Tkachev and first to use the Balanced Automatic Recoil System ( BARS ) to improve stability giving better accuracy over AK - 74 's . Its derivatives are the AK - 107 and AEK - 971 .  - Russia (from the  Rus'), also officially known as the Russian Federation, is a country in Eurasia. At , Russia is the largest country in the world by surface area, covering more than one-eighth of the Earth's inhabited land area, and the ninth most populous, with over 140 million people at the end of March 2016. The European western part of the country is much more populated and urbanised than the eastern, about 77% of the population live in European Russia. Russia's capital Moscow is one of the largest cities in the world, other major urban centers include Saint Petersburg, Novosibirsk, Yekaterinburg, Nizhny Novgorod and Samara.  - The AK-74 (Russian: or "Kalashnikov automatic rifle model 1974") is an assault rifle developed in the early 1970s by Russian designer Mikhail Kalashnikov as the replacement for the earlier AKM (itself a refined version of the AK-47). It uses a smaller 5.45×39mm cartridge, replacing the 7.62×39mm chambering of earlier Kalashnikov-pattern weapons.  - The AK-47, or AK as it is officially known (also known as the Kalashnikov) is a selective-fire (semi-automatic and automatic), gas-operated 7.62×39 mm assault rifle, developed in the Soviet Union by Mikhail Kalashnikov. It is officially known in the Soviet documentation as "Avtomat Kalashnikova".    What entity does 'ao-38 assault rifle' has the relation 'country of origin' with?
Ans: soviet union

Information:  - Lost in a Good Book is an alternate history fantasy novel by Jasper Fforde. It won the Independent Mystery Booksellers Association 2004 Dilys Award. It is the second in the Thursday Next series.  - Thursday Next is the protagonist in a series of comic fantasy, alternate history mystery novels by the British author Jasper Fforde. She was first introduced in Fforde's first published novel, "The Eyre Affair", released on 19 July 2001 by Hodder & Stoughton. , the series comprises seven books, in two series. The first series is made up of the novels "The Eyre Affair", "Lost in a Good Book", "The Well of Lost Plots" and "Something Rotten". The second series is so far made up of "First Among Sequels", "One of Our Thursdays Is Missing" and "The Woman Who Died a Lot".  - Jane Eyre (originally published as Jane Eyre: An Autobiography) is a novel by English writer Charlotte Brontë. It was published on 16 October 1847, by Smith, Elder & Co. of London, England, under the pen name "Currer Bell." The first American edition was published the following year by Harper & Brothers of New York.  - One of our Thursdays is Missing is the sixth "Thursday Next" book, by the British author Jasper Fforde. It was published in February 2011 in the United Kingdom and was published in March in the United States. The title is a reference to the 1942 war film "One of Our Aircraft Is Missing".  - Jasper Fforde (born 11 January 1961) is a British novelist. Fforde's first novel, "The Eyre Affair", was published in 2001. Fforde is mainly known for his "Thursday Next" novels, although he has written two books in the loosely connected "Nursery Crime" series and has begun two more independent series, "The Last Dragonslayer" and "".  - The Well of Lost Plots is a novel by Jasper Fforde, published in 2003. It is the third book in the Thursday Next series, after "The Eyre Affair" and "Lost in a Good Book".  - The Eyre Affair is the first published novel by English author Jasper Fforde , released by Hodder and Stoughton in 2001 . It takes place in alternative 1985 , where literary detective Thursday Next pursues a master criminal through the world of Charlotte Brontë 's Jane Eyre .  - First Among Sequels is an alternate history, comic fantasy novel by the British author Jasper Fforde. It is the fifth Thursday Next novel, first published on 5 July 2007 in the United Kingdom, and on 24 July 2007 in the United States. The novel follows the continuing adventures of Thursday Next in her fictional version of Swindon and in the BookWorld, and is the first of a new four-part Nextian series.  - Charlotte Brontë ("commonly" ; 21 April 1816  31 March 1855) was an English novelist and poet, the eldest of the three Brontë sisters who survived into adulthood and whose novels have become classics of English literature. She first published her works (including her best known novel, "Jane Eyre") under the pen name Currer Bell.    What entity does 'the eyre affair' has the relation 'publication date' with?
Ans: 19 july 2001