user: You are a structured reasoning expert tasked with solving problems step by step. 
You first think about the reasoning process in the mind and then provide the answer. The reasoning process and answer should be enclosed within <think> </think> and <answer> </answer> tags, respectively, i.e., <think> reasoning process here </think> <answer> answer here </answer>. 
Given a question and the associated knowledge graph triplets (entity, relation, entity), you are asked to answer the question with these triplets and your own knowledge. 
You can break down the original question into several sub-questions and explore the given knowledge graph to solve them step-by-step. If there are multiple possible answers, choose one as the final answer. 
After thinking, when you finally reach a conclusion, clearly state the answer within <answer> </answer> tags, i.e., <answer> answer here </answer>. 
Question: What wrote the work To Markie and fought in the battle of Gettysburg? 
Knowledge Triplets: Battle of Gettysburg, military.military_conflict.military_personnel_involved, Henry Heth
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Henry Warner Slocum
Régis de Trobriand, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Włodzimierz Krzyżanowski
Battle of Gettysburg, military.military_conflict.military_personnel_involved, J. H. Hobart Ward
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Edward Lloyd Thomas
Battle of Gettysburg, military.military_conflict.military_personnel_involved, William Gamble
John Brown Gordon, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Alcibiades DeBlanc
William Gamble, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, time.event.includes_event, Stevens Knoll
Battle of Gettysburg, Third Day cavalry battles, common.topic.image, Jeb stuart
Haskell of Gettysburg: His Life and Civil War Papers, book.written_work.subjects, American Civil War
James A. Walker, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, Second Day, common.topic.notable_for, g.1256z3v_w
The Colors of Courage: Gettysburg's Forgotten History - Immigrants, Women, and African Americans in the Civil War's Defining Battle, book.written_work.subjects, American Civil War
\"To Markie\", common.topic.notable_for, g.125fncx5v
\"To Markie\", book.written_work.author, Robert E. Lee
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Régis de Trobriand
Battle of Gettysburg, Third Day cavalry battles, common.topic.article, m.07qdn0
Battle of Gettysburg, military.military_conflict.military_personnel_involved, George H. Steuart
Edward A. O'Neal, military.military_person.participated_in_conflicts, Battle of Gettysburg
Joshua Chamberlain, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, George P. Doles
Lucius Fairchild, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, First Day, common.topic.notable_types, Military Conflict
John D. Barry, military.military_person.participated_in_conflicts, Battle of Gettysburg
Richard L. T. Beale, military.military_person.participated_in_conflicts, Battle of Gettysburg
Isaac R. Trimble, military.military_person.participated_in_conflicts, Battle of Gettysburg
The Colors of Courage: Gettysburg's Forgotten History - Immigrants, Women, and African Americans in the Civil War's Defining Battle, book.written_work.subjects, Battle of Gettysburg
Battle of Gettysburg, by Currier and Ives, common.image.size, m.02bcjj5
Gettysburg, book.book.editions, Gettysburg
Andrew A. Humphreys, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, First Day, time.event.included_in_event, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, James L. Kemper
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Alfred Iverson, Jr.
Battle of Gettysburg, Second Day, time.event.included_in_event, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Thomas H. Ruger
Fighting for the Confederacy, book.written_work.subjects, History
James J. Archer, military.military_person.participated_in_conflicts, Battle of Gettysburg
Horatio Wright, military.military_person.participated_in_conflicts, Battle of Gettysburg
George Sykes, military.military_person.participated_in_conflicts, Battle of Gettysburg
Daniel Sickles, military.military_person.participated_in_conflicts, Battle of Gettysburg
Ranald S. Mackenzie, military.military_person.participated_in_conflicts, Battle of Gettysburg
Adolph von Steinwehr, military.military_person.participated_in_conflicts, Battle of Gettysburg
Haskell of Gettysburg: His Life and Civil War Papers, book.book.editions, Haskell of Gettysburg: His Life and Civil War Papers
Fighting for the Confederacy, book.written_work.subjects, American Civil War
Hubert Dilger, military.military_person.participated_in_conflicts, Battle of Gettysburg
Robert E. Lee's Civil War, book.written_work.subjects, Robert E. Lee
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Evander M. Law
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Jubal Early
Battle of Gettysburg, military.military_conflict.military_personnel_involved, David Lang
\"To Markie\", book.book_edition.book, \"To Markie\"
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Alfred Moore Scales
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Daniel Butterfield
Fighting for the Confederacy, book.written_work.author, Edward Porter Alexander
Anderson's assault, time.event.included_in_event, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Hugh Judson Kilpatrick
Alfred Moore Scales, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, book.book_subject.works, Haskell of Gettysburg: His Life and Civil War Papers
Fighting for the Confederacy, book.written_work.subjects, Military branch
The Colors of Courage: Gettysburg's Forgotten History - Immigrants, Women, and African Americans in the Civil War's Defining Battle, book.book.editions, The Colors of Courage: Gettysburg's Forgotten History - Immigrants, Women, and African Americans in the Civil War's Defining Battle
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Richard L. T. Beale
Włodzimierz Krzyżanowski, military.military_person.participated_in_conflicts, Battle of Gettysburg
Lewis Armistead, military.military_person.participated_in_conflicts, Battle of Gettysburg
John M. Jones, military.military_person.participated_in_conflicts, Battle of Gettysburg
Samuel I. Hopkins, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, common.topic.notable_for, g.1255_4xkw
Battle of Gettysburg, military.military_conflict.military_personnel_involved, William Whedbee Kirkland
John Buford, military.military_person.participated_in_conflicts, Battle of Gettysburg
Evander M. Law, military.military_person.participated_in_conflicts, Battle of Gettysburg
Haskell of Gettysburg: His Life and Civil War Papers, book.written_work.subjects, Frank A. Haskell
The Colors of Courage: Gettysburg's Forgotten History - Immigrants, Women, and African Americans in the Civil War's Defining Battle, book.book.genre, Non-fiction
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Francis C. Barlow
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Richard S. Ewell
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Leonidas L. Polk
Battle of Gettysburg, base.americancivilwar.battle.military_units_involved_in_this_conflict, 10th Louisiana Infantry
Goode Bryan, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Richard B. Garnett
John Newton, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Lewis Armistead
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Charles Coster
George P. Doles, military.military_person.participated_in_conflicts, Battle of Gettysburg
Erasmus D. Keyes, military.military_person.participated_in_conflicts, Gettysburg Campaign
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Lafayette McLaws
John W. Geary, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.commanders, m.048z_8v
William Smith, military.military_person.participated_in_conflicts, Battle of Gettysburg
The Colors of Courage: Gettysburg's Forgotten History - Immigrants, Women, and African Americans in the Civil War's Defining Battle, book.book.editions, The colors of courage : Gettysburg's forgotten history : immigrants, women, and African Americans in the Civil War's defining battle
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Daniel Sickles
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Harry T. Hays
Alexander S. Webb, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, George Pickett
Stephen Dodson Ramseur, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Beverly Robertson
P.G.T. Beauregard, book.written_work.subjects, American Civil War
Battle of Gettysburg, military.military_conflict.military_personnel_involved, George Armstrong Custer
Battle of Gettysburg, common.topic.notable_types, Military Conflict
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Edward Porter Alexander
Battle of Gettysburg, Second Day, common.topic.image, Gettysburg Battle Map Day2
Battle of Gettysburg, common.topic.image, Battle of Gettysburg, by Currier and Ives
\"To Markie\", common.topic.notable_types, Book
Gettysburg: the final fury, book.book.genre, History
Ambrose R. Wright, military.military_person.participated_in_conflicts, Battle of Gettysburg
J. H. Hobart Ward, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Gouverneur K. Warren
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Junius Daniel
Fighting for the Confederacy, book.written_work.subjects, Confederate States of America
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Henry Baxter
Alcibiades DeBlanc, military.military_person.participated_in_conflicts, Battle of Gettysburg
Stevens Knoll, time.event.included_in_event, Battle of Gettysburg
Battle of Gettysburg, First Day, common.topic.article, m.07jrdb
Battle of Gettysburg, military.military_conflict.military_personnel_involved, George Sykes
Bruce Catton, book.author.works_written, Gettysburg: the final fury
Solomon Meredith, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, Third Day cavalry battles, common.topic.image, Gettysburg East Cavalry Field, opening positions ██ Confederate ██ Union
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Horatio Wright
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Robert A. Hardee
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Andrew A. Humphreys
Paul Jones Semmes, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Washington Roebling
Battle of Gettysburg, base.ontologies.ontology_instance.equivalent_instances, m.09by3sh
Robert A. Hardee, military.military_person.participated_in_conflicts, Battle of Gettysburg
Edward E. Cross, military.military_person.participated_in_conflicts, Battle of Gettysburg
John C. Caldwell, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Ranald S. Mackenzie
Battle of Gettysburg, by Currier and Ives, common.image.appears_in_topic_gallery, Battle of Gettysburg
Battle of Gettysburg, time.event.locations, Gettysburg
James Henry Lane, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, time.event.includes_event, Battle of Gettysburg, Third Day cavalry battles
Richard S. Ewell, military.military_person.participated_in_conflicts, Battle of Gettysburg
McLaws' Assault, time.event.included_in_event, Battle of Gettysburg
Edward Lloyd Thomas, military.military_person.participated_in_conflicts, Battle of Gettysburg
Andrew A. Humphreys, book.author.works_written, From Gettysburg to Rapidan
Battle of Gettysburg, military.military_conflict.military_personnel_involved, George Meade
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Ambrose R. Wright
Battle of Gettysburg, book.book_subject.works, The Colors of Courage: Gettysburg's Forgotten History - Immigrants, Women, and African Americans in the Civil War's Defining Battle
David B. Birney, military.military_person.participated_in_conflicts, Battle of Gettysburg
Isaac E. Avery, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, base.culturalevent.event.entity_involved, Robert E. Lee
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Hubert Dilger
Charles Griffin, military.military_person.participated_in_conflicts, Battle of Gettysburg
John Brown Gordon, book.author.works_written, Reminiscences Of The Civil War
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Lewis B. Williams, Jr
Battle of Gettysburg, military.military_conflict.military_personnel_involved, John Bell Hood
Battle of Gettysburg, military.military_conflict.military_personnel_involved, George S. Greene
Haskell of Gettysburg: His Life and Civil War Papers, common.topic.notable_types, Book
Hugh Judson Kilpatrick, military.military_person.participated_in_conflicts, Battle of Gettysburg
\"To Markie\", common.topic.notable_types, Book Edition
Battle of Gettysburg, Third Day cavalry battles, time.event.included_in_event, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Alpheus S. Williams
Lewis B. Williams, Jr, military.military_person.participated_in_conflicts, Battle of Gettysburg
\"To Markie\", book.written_work.author, Robert E. Lee
James L. Kemper, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Oliver O. Howard
Edward Porter Alexander, book.author.works_written, Fighting for the Confederacy
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Robert E. Rodes
Battle of Gettysburg, time.event.includes_event, Big Round Top cavalry charge
William Whedbee Kirkland, military.military_person.participated_in_conflicts, Battle of Gettysburg
William R. Terry, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Charles Griffin
James S. Wadsworth, military.military_person.participated_in_conflicts, Battle of Gettysburg
Reminiscences Of The Civil War, book.written_work.author, John Brown Gordon
Battle of Gettysburg, time.event.includes_event, Battle of Gettysburg, Second Day
Elon J. Farnsworth, military.military_person.participated_in_conflicts, Battle of Gettysburg
Haskell of Gettysburg: His Life and Civil War Papers, book.written_work.author, Frank A. Haskell
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Bryan Grimes
Battle of Gettysburg, military.military_conflict.military_personnel_involved, James Henry Lane
Robert E. Lee, book.author.works_written, \"To Markie\"
The Colors of Courage: Gettysburg's Forgotten History - Immigrants, Women, and African Americans in the Civil War's Defining Battle, common.topic.article, m.0651sz1
David Lang, military.military_person.participated_in_conflicts, Battle of Gettysburg
Benjamin G. Humphreys, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, base.americancivilwar.battle.military_units_involved_in_this_conflict, 15th Louisiana Infantry Regiment
Haskell of Gettysburg: His Life and Civil War Papers, book.written_work.editor, Frank L. Byrne
George Pickett, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, John Buford
Oliver O. Howard, military.military_person.participated_in_conflicts, Battle of Gettysburg
Gettysburg, book.written_work.author, Stephen W. Sears
Joseph B. Kershaw, military.military_person.participated_in_conflicts, Battle of Gettysburg
Joseph R. Davis, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, John M. Jones
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Eppa Hunton
Edward Porter Alexander, book.author.works_written, The American civil war
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Stephen Rose Gilkyson
Alfred Iverson, Jr., military.military_person.participated_in_conflicts, Battle of Gettysburg
Ground warfare, base.americancivilwar.battlespace.battles, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, William Mahone
Battle of Gettysburg, time.event.includes_event, McLaws' Assault
Battle of Gettysburg, military.military_conflict.military_personnel_involved, John Newton
Battle of Gettysburg, military.military_conflict.combatants, m.048z_8m
Battle of Gettysburg, First Day, common.topic.notable_for, g.125cg56lc
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Albion P. Howe
Junius Daniel, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Elwell Stephen Otis
Haskell of Gettysburg: His Life and Civil War Papers, book.book.genre, Non-fiction
Battle of Gettysburg, First Day, common.topic.image, Gettysburg Battle Map Day1
Edward Porter Alexander, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Augustus Pearl Martin
Battle of Gettysburg, military.military_conflict.military_personnel_involved, James J. Archer
Battle of Gettysburg, time.event.includes_event, Anderson's assault
Battle of Gettysburg, military.military_conflict.commanders, m.048z_91
Charles Coster, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, common.topic.article, m.01jny
Harry T. Hays, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, book.book_subject.works, The Killer Angels: A Novel of the Civil War
Washington Roebling, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, James S. Wadsworth
Battle of Gettysburg, Third Day cavalry battles, common.topic.notable_for, g.125fs0tr0
Battle of Gettysburg, military.military_conflict.military_personnel_involved, James A. Walker
Battle of Gettysburg, military.military_conflict.military_personnel_involved, William T. Wofford
William Dorsey Pender, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, time.event.includes_event, Battle of Gettysburg, First Day
Beverly Robertson, military.military_person.participated_in_conflicts, Battle of Gettysburg
\"To Markie\", book.book.editions, \"To Markie\"
Fighting for the Confederacy, book.written_work.subjects, United States of America
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Solomon Meredith
Battle of Gettysburg, military.military_conflict.military_personnel_involved, John W. Geary
Battle of Gettysburg, military.military_conflict.military_personnel_involved, William Barksdale
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Alexander S. Webb
Battle of Gettysburg, military.military_conflict.military_personnel_involved, William Harrow
John F. Reynolds, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, Third Day cavalry battles, common.topic.notable_types, Military Conflict
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Joshua Chamberlain
Haskell of Gettysburg: His Life and Civil War Papers, book.written_work.subjects, Battle of Gettysburg
Jubal Early, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, David B. Birney
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Paul Jones Semmes
Gettysburg: the final fury, book.written_work.subjects, American Civil War
Gettysburg, book.written_work.subjects, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Isaac E. Avery
John D. Imboden, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Goode Bryan
William T. Wofford, military.military_person.participated_in_conflicts, Battle of Gettysburg
The Colors of Courage: Gettysburg's Forgotten History - Immigrants, Women, and African Americans in the Civil War's Defining Battle, common.topic.notable_types, Book
Lafayette McLaws, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, book.book_subject.works, Gettysburg
The Colors of Courage: Gettysburg's Forgotten History - Immigrants, Women, and African Americans in the Civil War's Defining Battle, common.topic.notable_for, g.125brm0nf
Battle of Gettysburg, base.culturalevent.event.entity_involved, George Meade
George S. Greene, military.military_person.participated_in_conflicts, Battle of Gettysburg
Gouverneur K. Warren, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, Third Day cavalry battles, common.topic.image, Wade Hampton
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Edward E. Cross
Henry Baxter, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, John D. Imboden
Daniel Butterfield, military.military_person.participated_in_conflicts, Battle of Gettysburg
Gettysburg, book.book.genre, Non-fiction
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Benjamin G. Humphreys
Battle of Gettysburg, military.military_conflict.military_personnel_involved, John Brown Gordon
Robert E. Rodes, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, William R. Terry
Battle of Gettysburg, Second Day, common.topic.notable_types, Military Conflict
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Adolph von Steinwehr
Battle of Gettysburg, book.book_subject.works, Gettysburg: the final fury
Battle of Gettysburg, military.military_conflict.combatants, m.048z_8f
Battle of Gettysburg, time.event.includes_event, Barlow Knoll
Henry Heth, military.military_person.participated_in_conflicts, Battle of Gettysburg
The Colors of Courage: Gettysburg's Forgotten History - Immigrants, Women, and African Americans in the Civil War's Defining Battle, book.written_work.author, Margaret Creighton
Battle of Gettysburg, military.military_conflict.military_personnel_involved, John F. Reynolds
Battle of Gettysburg, Second Day, common.topic.article, m.07lwv4
Haskell of Gettysburg: His Life and Civil War Papers, book.written_work.editor, Andrew T. Weaver
Albion P. Howe, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Elon J. Farnsworth
Battle of Gettysburg, time.event.included_in_event, Gettysburg Campaign
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Samuel I. Hopkins
Richard B. Garnett, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Isaac R. Trimble
Battle of Gettysburg, time.event.included_in_event, American Civil War
Battle of Gettysburg, time.event.includes_event, Slaughter Pen
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Edward A. O'Neal
William Barksdale, military.military_person.participated_in_conflicts, Battle of Gettysburg
Gettysburg: the final fury, book.written_work.subjects, Battle of Gettysburg
Battle of Gettysburg, base.americancivilwar.battle.military_units_involved_in_this_conflict, 24th Michigan Volunteer Infantry Regiment
Henry Warner Slocum, military.military_person.participated_in_conflicts, Battle of Gettysburg
Gettysburg: the final fury, book.written_work.author, Bruce Catton
Bryan Grimes, military.military_person.participated_in_conflicts, Battle of Gettysburg
Régis de Trobriand, book.author.works_written, Four years with the Army of the Potomac
Battle of Gettysburg, military.military_conflict.military_personnel_involved, John C. Caldwell
The Killer Angels: A Novel of the Civil War, media_common.adapted_work.adaptations, Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Stephen Dodson Ramseur
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Joseph R. Davis
Battle of Gettysburg, military.military_conflict.military_personnel_involved, John D. Barry
The Killer Angels: A Novel of the Civil War, book.written_work.subjects, Battle of Gettysburg
Battle of Gettysburg, base.culturalevent.event.entity_involved, Robert E. Lee
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Lucius Fairchild
Battle of Gettysburg, military.military_conflict.military_personnel_involved, William Smith
Augustus Pearl Martin, military.military_person.participated_in_conflicts, Battle of Gettysburg
Stephen Rose Gilkyson, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.military_personnel_involved, Joseph B. Kershaw
William Harrow, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, time.event.locations, Pennsylvania
Gettysburg, media_common.adaptation.adapted_from, The Killer Angels: A Novel of the Civil War
William Mahone, military.military_person.participated_in_conflicts, Battle of Gettysburg
George H. Steuart, military.military_person.participated_in_conflicts, Battle of Gettysburg
Haskell of Gettysburg: His Life and Civil War Papers, book.book.genre, Biography
Andrew A. Humphreys, book.author.works_written, The Virginia campaign of '64 and '65
Battle of Gettysburg, base.americancivilwar.battle.military_units_involved_in_this_conflict, 14th Louisiana Infantry Regiment
Battle of Gettysburg, base.americancivilwar.battle.battlespace, Ground warfare
Francis C. Barlow, military.military_person.participated_in_conflicts, Battle of Gettysburg
George Meade, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, Third Day cavalry battles, time.event.includes_event, Big Round Top cavalry charge
Gettysburg: the final fury, book.book.genre, Non-fiction
George T. Anderson, military.military_person.participated_in_conflicts, Battle of Gettysburg
Thomas H. Ruger, military.military_person.participated_in_conflicts, Battle of Gettysburg
Battle of Gettysburg, military.military_conflict.combatants, m.04fvhdg
Robert E. Lee's Civil War, book.written_work.subjects, American Civil War
Battle of Gettysburg, time.event.includes_event, Crawford's charge
Battle of Gettysburg, military.military_conflict.military_personnel_involved, William Dorsey Pender
Battle of Gettysburg, military.military_conflict.military_personnel_involved, George T. Anderson
Alpheus S. Williams, military.military_person.participated_in_conflicts, Battle of Gettysburg
\"To Markie\", common.topic.notable_for, g.125fbxx6f

Answer: Robert E. Lee