In natural language processing, open information extraction (OIE) is the task of generating a structured, machine-readable representation of the information in text, usually in the form of triples or n-ary propositions.
 A proposition can be understood as truth-bearer, a textual expression of a potential fact (e.g., "Dante wrote the Divine Comedy"), represented in an amenable structure for computers [e.g., ("Dante", "wrote", "Divine Comedy")].
 An OIE extraction normally consists of a relation and a set of arguments.
 For instance, ("Dante", "passed away in" "Ravenna") is a proposition formed by the relation "passed away in" and the arguments "Dante" and "Ravenna".
 The first argument is usually referred as the subject while the second is considered to be the object.
The Springfield Armory M6 Scout is a multipurpose firearm, combining rifle and shotgun.
 Springfield Armory produced two versions, a standard model with Parkerized finish and another made from rustproof stainless steel.
The Springfield Armory XD (X-Treme Duty, the M is for the match grade barrel and match grade trigger) are a series of semi-automatic pistols that are polymer-framed and striker-fired.
 They closely resemble their predecessor, the HS2000 pistol (most widely known in the United States as Springfield Armory XD).
 Manufactured in the city of Karlovac, Croatia by HS Produkt (formerly I.M. Metal), the Springfield Armory XDM is the marketing name for the weapon, which is licensed and sold in the US by Springfield Armory, Inc..
William Shepard (December 1, 1737 [O.S. November 20, 1737]  - November 16 , 1817) was a United States Representative from Massachusetts (1797–1802), and a military officer in the Continental Army during the American Revolutionary War.
 As a state militia leader he protected the Springfield Armory during Shays' Rebellion, firing cannon into the force of Daniel Shays and compelling them to disperse.
 He was also served in town and state government and was a member of the Massachusetts Governor's Council.
The Springfield Armory, located in the city of Springfield, Massachusetts, was the primary center for the manufacture of U.S. military firearms from 1777 until its closing in 1968.
 The site is preserved as the Springfield Armory National Historic Site, Western Massachusetts' only unit of the national park system.
 It features the world's largest collection of historic American firearms.
Benjamin Tupper (March 11, 1738 – June 16, 1792) was a soldier in the French and Indian War, and an officer of the Continental Army during the American Revolutionary War, achieving the rank of brevet brigadier general.
 Subsequently, he served as a Massachusetts legislator, and he assisted Gen. William Shepard in stopping Shays' Rebellion.
 Benjamin Tupper was a co-founder of the Ohio Company of Associates, and was a pioneer to the Ohio Country, involved in establishing Marietta, Ohio as the first permanent settlement in the Northwest Territory.
Simeon Wheelock (March 29, 1741– September 30, 1786) was a blacksmith from Uxbridge, Massachusetts, who served as a minuteman in the Massachusetts militia during the battles of Lexington and Concord in the American Revolutionary War.
 After the war he was killed while on militia duty protecting the Springfield Armory during Shays' Rebellion.
The Springfield Armory M1A is a civilian version of the M14 rifle designed and manufactured by Springfield Armory, Inc., beginning in 1974.
 The term "M1A" is a proprietary title for Springfield Armory's M14-pattern rifle.
 Early M1A rifles were built with surplus G.I. parts until Springfield Armory, Inc. began manufacturing their own.
Daniel Shays (c. 1747 – September 29, 1825) was an American soldier, revolutionary, and farmer famous for being one of the leaders of Shays' Rebellion, a populist uprising against controversial debt collection and tax policies in Massachusetts in 1786 and 1787.
Harpers Ferry Armory, more formally known as the United States Armory and Arsenal at Harpers Ferry, was the second federal armory commissioned by the United States government.
 It was located in Harpers Ferry, West Virginia (then part of Virginia), while the first federal armory was the Springfield Armory located in Springfield, Massachusetts.
 In many books the town is called “Harper’s Ferry” with an apostrophe.

Question: William Shepard protected the Springfield Armory during Shays' Rebellion, firing cannon into the force a soldier who passed away in which year ?
Answer: 1825