Information: - A countersink ( symbol : ) is a conical hole cut into a manufactured object , or the cutter used to cut such a hole . A common use is to allow the head of a countersunk bolt or screw , when placed in the hole , to sit flush with or below the surface of the surrounding material ( by comparison , a counterbore makes a flat - bottomed hole that might be used with a socket - head capscrew ) . A countersink may also be used to remove the burr left from a drilling or tapping operation thereby improving the finish of the product and removing any hazardous sharp edges . The basic geometry of a countersink ( cutter ) inherently can be applied to the plunging applications described above ( axial feed only ) and also to other milling applications ( sideways traversal ) . Therefore , countersinks overlap in form , function , and sometimes name with chamfering endmills ( endmills with angled tips ) . Regardless of the name given to the cutter , the surface being generated may be a conical chamfer ( plunging applications ) or a beveled corner for the intersection of two planes ( traversing applications ) . - A drill is a tool fitted with a cutting tool attachment or driving tool attachment, usually a drill bit or driver bit, used for boring holes in various materials or fastening various materials together with the use of fasteners. The attachment is gripped by a chuck at one end of the drill and rotated while pressed against the target material. The tip, and sometimes edges, of the cutting tool does the work of cutting into the target material. This may be slicing off thin shavings (twist drills or auger bits), grinding off small particles (oil drilling), crushing and removing pieces of the workpiece (SDS masonry drill), countersinking, counterboring, or other operations. - A counterbore (symbol: ) is a cylindrical flat-bottomed hole that enlarges another coaxial hole, or the tool used to create that feature. A counterbore hole is typically used when a fastener, such as a socket head cap screw, is required to sit flush with or below the level of a workpiece's surface. - A fastener is a hardware device that mechanically joins or affixes two or more objects together. In general, fasteners are used to create non-permanent joints; that is, joints that can be removed or dismantled without damaging the joining components. Welding is an example of creating permanent joints. After reading the paragraphs above, choose the best answer for the entity that related to 'countersink' with the relationship of 'subclass of'. Choices: - cap - cutting tool - fastener - feature - symbol - tool - welding
cutting tool

Ques:Information: - The Holy Roman Empire was a multi-ethnic complex of territories in central Europe that developed during the Early Middle Ages and continued until its dissolution in 1806. The largest territory of the empire after 962 was the Kingdom of Germany, though it also came to include the Kingdom of Bohemia, the Kingdom of Burgundy, the Kingdom of Italy, and numerous other territories. - Charles IV (, ; 14 May 1316 29 November 1378), born Wenceslaus, was a King of Bohemia and the first King of Bohemia to also become Holy Roman Emperor. He was a member of the House of Luxembourg from his father's side and the House of Pemyslid from his mother's side, which he emphasised, because it gave him two saints as direct ancestors. - Aldona (baptized "Ona" or "Anna"; her pagan name, Aldona, is known only from the writings of Maciej Stryjkowski; 26 May 1339) was Queen consort of Poland (13331339), and a princess of the Grand Duchy of Lithuania. She was the daughter of Gediminas, Grand Duke of Lithuania. - Elizabeth of Pomerania (c. 1347 15 April 1393) was the fourth and final wife of CharlesIV, Holy Roman Emperor and king of Bohemia. Her parents were BogislawV, Duke of Pomerania, and Elisabeth of Poland. Her maternal grandparents were CasimirIII, King of Poland, and Aldona of Lithuania. - Anne of Bohemia ( 11 May 1366 -- 7 June 1394 ) was Queen of England as the first wife of King Richard II. A member of the House of Luxembourg , she was the eldest daughter of Charles IV , Holy Roman Emperor and King of Bohemia , and Elizabeth of Pomerania . She died at 28 after 12 years of marriage ; she was childless , and greatly mourned by her husband . The marriage was initially unpopular in England , as though Anne 's father was perhaps the most powerful monarch in Europe , his relatively distant territories appeared to give little trade or political advantage to England , and instead of Anne bringing a dowry with her , Richard had to pay her brother a fee . But Anne appears to have won many English people over by her personality , and attempts to help get royal pardons . Her father 's court , based in Prague , was a centre of the International Gothic style , then at its height , and her arrival seems to coincide with , and probably caused , new influences on English art. The Crown of Princess Blanche , now in Munich , may have been made for Anne , either in Prague or Paris . She had four brothers , including Sigismund , Holy Roman Emperor , and one younger sister , Margaret of Bohemia , Burgravine of Nuremberg . She also had five half - siblings from her father 's previous marriages . Anne is buried in Westminster Abbey beside her husband . - Bohemia is the westernmost and largest historical region of the Czech lands in the present-day Czech Republic. In a broader meaning, Bohemia sometimes refers to the entire Czech territory, including Moravia and Czech Silesia, especially in a historical context, such as the Lands of the Bohemian Crown ruled by Bohemian kings. - The House of Luxembourg was a late medieval European royal family, whose members between 1308 and 1437 ruled as King of the Romans and Holy Roman Emperors as well as Kings of Bohemia ("esti kralove, Konig von Bohmen") and Hungary. Their rule over the Holy Roman Empire was twice interrupted by the rival House of Wittelsbach. - The Holy Roman Emperor (historically "" "Emperor of the Romans") was the ruler of the Holy Roman Empire. From an autocracy in Carolingian times the title evolved into an elected monarchy chosen by the Prince-electors. Until the Reformation the Emperor elect ("imperator electus") was required to be crowned by the Pope before assuming the imperial title. After reading the paragraphs above, choose the best answer for the entity that related to 'anne of bohemia' with the relationship of 'country of citizenship'. Choices: - bohemia - czech republic - grand duchy of lithuania - holy roman empire - hungary - kingdom of bohemia - lithuania - luxembourg - poland - roman empire

Ans:
kingdom of bohemia