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 killed the general who served in the military unit Army of Northern Virginia? 
Knowledge Triplets: Robert E. Lee, military.military_commander.military_commands, m.04fv8cn
James J. Archer, military.military_person.participated_in_conflicts, Battle of Chancellorsville
m.0c058rz, military.military_command.military_combatant, Confederate States of America
Confederate States of America, military.military_combatant.military_commanders, m.0c058rz
m.0cnmgn7, military.casualties.combatant, Confederate States of America
Army of Northern Virginia, base.ontologies.ontology_instance.equivalent_instances, m.09km06f
Military unit, type.type.expected_by, Units of this type
Military unit, type.type.properties, Service members
Confederate States Army, common.topic.article, m.01qy7j
Joseph B. Kershaw, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Army of Northern Virginia, book.book_subject.works, General Lee's Army
Andrew A. Humphreys, military.military_person.participated_in_conflicts, Battle of Chancellorsville
m.062trlw, military.military_command.military_commander, Robert E. Lee
15th Louisiana Infantry Regiment, military.military_unit.armed_force, Confederate States Army
Elisha F. Paxton, military.military_person.participated_in_conflicts, Battle of Chancellorsville
George Meade, military.military_person.participated_in_conflicts, Battle of Chancellorsville
m.0gllvng, organization.organization_relationship.parent, Army of Northern Virginia
Confederate States of America, military.military_combatant.military_commanders, m.049y3bl
Military unit, freebase.type_profile.strict_included_types, Topic
Virginia, location.administrative_division.first_level_division_of, United States of America
Stephen Dodson Ramseur, military.military_person.participated_in_conflicts, Battle of Chancellorsville
James Henry Lane, military.military_person.participated_in_conflicts, Battle of Chancellorsville
m.0gllvl5, organization.organization_relationship.parent, Confederate States Army
m.049ylks, military.military_command.military_combatant, Confederate States of America
Robert E. Lee, military.military_commander.military_commands, m.04fv7qj
m.07y5lq8, military.military_command.military_commander, Robert E. Lee
James Henry Lane, military.military_person.participated_in_conflicts, American Civil War
Henry Baxter, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Field army, military.military_unit_size.units_of_this_type, Army of Northern Virginia
Robert E. Lee, military.military_commander.military_commands, m.0w5qbtr
Raleigh E. Colston, people.deceased_person.place_of_death, Richmond
Confederate States of America, location.country.capital, Richmond
m.0cnmfsz, military.force_strength.combatant, Confederate States of America
Robert E. Lee, military.military_commander.military_commands, m.062trlw
Military memoirs of a Confederate, book.written_work.subjects, Confederate States of America
Battle of Chancellorsville, military.military_conflict.military_personnel_involved, Henry Warner Slocum
Reminiscences Of The Civil War, book.written_work.subjects, Confederate States of America
Francis C. Barlow, military.military_person.participated_in_conflicts, Battle of Chancellorsville
John W. Geary, military.military_person.participated_in_conflicts, American Civil War
Nathaniel McLean, military.military_person.participated_in_conflicts, American Civil War
George Sykes, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Battle of Chancellorsville, time.event.locations, Virginia
Confederate States of America, military.military_combatant.armed_forces, Confederate States Army
Robert E. Lee, military.military_commander.military_commands, m.0dl56tp
Military memoirs of a Confederate, book.written_work.author, Edward Porter Alexander
George P. Doles, military.military_person.participated_in_conflicts, Battle of Chancellorsville
m.0gmkgpk, military.casualties.combatant, Confederate States of America
Confederate States of America, military.military_combatant.armed_forces, Confederate States Navy
Army of Northern Virginia, base.americancivilwar.military_unit.conflicts_participated_in, Battle of Chancellorsville
m.04yxf4y, military.military_command.military_combatant, Confederate States of America
Military unit, freebase.type_profile.equivalent_topic, Military unit
William T. Wofford, military.military_person.participated_in_conflicts, American Civil War
Thomas Francis Meagher, military.military_person.participated_in_conflicts, American Civil War
Alfred Iverson, Jr., military.military_person.participated_in_conflicts, American Civil War
Edward Porter Alexander, military.military_person.participated_in_conflicts, American Civil War
Robert E. Lee, military.military_commander.military_commands, m.04fvbbv
Charles Coster, military.military_person.participated_in_conflicts, American Civil War
Bryan Grimes, military.military_person.participated_in_conflicts, Battle of Chancellorsville
m.05t5rj7, military.military_command.military_commander, Robert E. Lee
Adolph von Steinwehr, military.military_person.participated_in_conflicts, American Civil War
General Lee's Army, book.book.genre, Military history
m.0gmlnlq, military.military_command.military_combatant, Confederate States of America
Military unit, freebase.type_profile.kind, Definition
William P. Richardson, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Nelson A. Miles, military.military_person.participated_in_conflicts, Battle of Chancellorsville
m.04fvbg9, military.military_command.military_commander, Robert E. Lee
John C. Caldwell, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Friedrich Hecker, military.military_person.participated_in_conflicts, Battle of Chancellorsville
William P. Richardson, military.military_person.participated_in_conflicts, American Civil War
Army of Northern Virginia, common.topic.notable_types, Military unit
Military unit, freebase.type_hints.included_types, Topic
Darius N. Couch, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Oliver O. Howard, military.military_person.participated_in_conflicts, Battle of Chancellorsville
m.049y2qw, military.military_command.military_combatant, Confederate States of America
Army of Northern Virginia, organization.organization.place_founded, Confederate States of America
Confederate States of America, military.military_combatant.military_commanders, m.048z_8v
Battle of Chancellorsville, military.military_conflict.military_personnel_involved, Robert E. Lee
m.049yl34, military.military_command.military_combatant, Confederate States of America
m.049y2vg, military.military_command.military_combatant, Confederate States of America
Robert E. Lee, book.book_subject.works, General Lee's Army
Robert E. Lee, military.military_commander.military_commands, m.04fv885
Virginia, location.location.containedby, United States of America
m.049y352, military.military_command.military_combatant, Confederate States of America
m.049y372, military.military_command.military_commander, Robert E. Lee
Robert E. Lee, military.military_commander.military_commands, m.04yv3f8
Robert E. Lee, base.kwebbase.kwtopic.connections_to, general george brinton mcclellan fought robert edward lee
Confederate States of America, military.military_combatant.military_commanders, m.0dl56tp
Military unit, freebase.type_profile.strict_included_types, Abstract
William Ruffin Cox, military.military_person.participated_in_conflicts, Battle of Chancellorsville
m.0gllvl5, organization.organization_relationship.child, Army of Northern Virginia
James S. Wadsworth, military.military_person.participated_in_conflicts, American Civil War
Confederate States of America, military.military_combatant.casualties, m.0gmkfgp
Confederate States of America, military.military_combatant.military_commanders, m.04yxf4y
Robert E. Lee, military.military_commander.military_commands, m.04fvbh3
m.0c1sz04, military.military_command.military_combatant, Confederate States of America
Harry T. Hays, military.military_person.participated_in_conflicts, Battle of Chancellorsville
George Sykes, military.military_person.participated_in_conflicts, American Civil War
John M. Jones, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Confederate States of America, military.military_combatant.military_commanders, m.049y372
Battle of Chancellorsville, military.military_conflict.military_personnel_involved, Andrew A. Humphreys
General Lee's Army, book.written_work.subjects, Army of Northern Virginia
Stonewall Jackson, military.military_person.participated_in_conflicts, American Civil War
m.09rqqxz, military.military_service.military_force, Confederate States Army
Confederate States of America, military.military_combatant.military_commanders, m.049ylks
Stonewall Jackson, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Confederate States of America, military.military_combatant.military_commanders, m.049y352
Robert E. Lee, military.military_commander.military_commands, m.04zc_73
Battle of Chancellorsville, base.americancivilwar.battle.military_units_involved_in_this_conflict, Army of Northern Virginia
Military memoirs of a Confederate, common.topic.notable_types, Book
Charles Coster, military.military_person.participated_in_conflicts, Battle of Chancellorsville
m.09km06f, base.ontologies.ontology_instance_mapping.freebase_topic, Army of Northern Virginia
Confederate States of America, military.military_combatant.military_commanders, m.0gmkgm8
Robert E. Lee, military.military_commander.military_commands, m.04fvn_d
Confederate States of America, military.military_combatant.military_commanders, m.049yl34
m.04fvgp8, military.military_command.military_commander, Robert E. Lee
Alfred Pleasonton, military.military_person.participated_in_conflicts, American Civil War
Robert E. Lee, military.military_commander.military_commands, m.04fvgp8
William Harrow, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Robert E. Lee, military.military_commander.military_commands, m.07y5lq8
Alpheus S. Williams, military.military_person.participated_in_conflicts, Battle of Chancellorsville
2nd Louisiana Infantry Regiment, military.military_unit.armed_force, Confederate States Army
m.049y2vq, military.military_command.military_combatant, Confederate States of America
John W. Geary, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Robert E. Lee, military.military_commander.military_commands, m.07y5lpg
m.04fs5_4, military.military_command.military_commander, Robert E. Lee
Robert E. Lee, military.military_commander.military_commands, m.04fvbg9
Army of Northern Virginia, organization.organization.parent, m.0gllvl5
m.0gllvhm, military.military_service.military_force, Confederate States Army
Lucius Fairchild, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Elon J. Farnsworth, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Military unit, freebase.type_profile.strict_included_types, Organization
Confederate States of America, military.military_combatant.military_commanders, m.04fvgdv
m.04fvn_d, military.military_command.military_commander, Robert E. Lee
m.049y3bl, military.military_command.military_combatant, Confederate States of America
Alfred Pleasonton, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Military unit, type.type.expected_by, Unit
Thomas H. Ruger, military.military_person.participated_in_conflicts, American Civil War
Robert E. Lee, military.military_commander.military_commands, m.0c058rz
Joseph Hooker, military.military_person.participated_in_conflicts, Battle of Chancellorsville
General Lee's Army, book.book.genre, Non-fiction
m.04ywph6, military.military_command.military_commander, Robert E. Lee
Confederate States of America, military.military_combatant.armed_forces, Confederate States Marine Corps
Samuel S. Carroll, military.military_person.participated_in_conflicts, Battle of Chancellorsville
John Gibbon, military.military_person.participated_in_conflicts, Battle of Chancellorsville
m.0dl56tp, military.military_command.military_combatant, Confederate States of America
m.04fvgdv, military.military_command.military_combatant, Confederate States of America
Robert E. Lee, military.military_commander.military_commands, m.04fvgcw
m.0h400yy, military.military_command.military_commander, Robert E. Lee
Robert E. Lee, military.military_commander.military_commands, m.062tpcg
Robert E. Lee, military.military_commander.military_commands, m.04fv9ft
Edward Lloyd Thomas, military.military_person.participated_in_conflicts, American Civil War
Confederate States Army, military.armed_force.military_combatant, Confederate States of America
2nd Louisiana Infantry Regiment, base.americancivilwar.military_unit.conflicts_participated_in, Battle of Chancellorsville
Edward A. Perry, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Robert E. Lee, military.military_commander.military_commands, m.049y352
Military unit, common.topic.article, m.0bc1f2f
Virginia, base.biblioness.bibs_location.country, United States of America
Unit, rdf-schema#range, Military unit
Henry Warner Slocum, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Military unit, type.type.properties, Formed
Robert E. Lee, military.military_commander.military_commands, m.04ywph6
m.049y3bl, military.military_command.military_commander, Robert E. Lee
m.049y34n, military.military_command.military_commander, Joseph Hooker
m.04fv885, military.military_command.military_commander, Robert E. Lee
Battle of Chancellorsville, base.americancivilwar.battle.military_units_involved_in_this_conflict, 15th Louisiana Infantry Regiment
m.0dl56tp, military.military_command.military_commander, Robert E. Lee
Lafayette McLaws, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Army of the Potomac, base.americancivilwar.military_unit.conflicts_participated_in, Battle of Chancellorsville
Robert E. Lee, military.military_person.participated_in_conflicts, American Civil War
Charles Albright, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Confederate States of America, military.military_combatant.military_commanders, m.049y2vq
Confederate States Army, common.topic.image, Confederate Seal
General Robert E. Lee, commander of the Army of Northern Virginia, common.image.appears_in_topic_gallery, Army of Northern Virginia
David Lang, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Battle of Chancellorsville, military.military_conflict.military_personnel_involved, Stonewall Jackson
Robert E. Rodes, military.military_person.participated_in_conflicts, Battle of Chancellorsville
John D. Barry, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Edward A. O'Neal, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Robert E. Lee, military.military_commander.military_commands, m.04ytrkx
Henry Baxter, military.military_person.participated_in_conflicts, American Civil War
Stephen Dodson Ramseur, military.military_person.participated_in_conflicts, American Civil War
Military unit, type.type.expected_by, Military units
m.0gllvhm, military.military_service.unit, Army of Northern Virginia
Robert E. Lee, military.military_commander.military_commands, m.049y3bl
Frank Baker, military.military_person.participated_in_conflicts, Battle of Chancellorsville
m.04zc_73, military.military_command.military_commander, Robert E. Lee
Confederate States Navy, military.armed_force.military_combatant, Confederate States of America
Military unit, freebase.type_hints.included_types, Organization
Lafayette McLaws, military.military_person.participated_in_conflicts, American Civil War
m.0c058rz, military.military_command.military_commander, Robert E. Lee
Robert E. Rodes, military.military_person.participated_in_conflicts, American Civil War
Robert E. Lee, military.military_person.service, m.09rqqxz
Confederate States of America, military.military_combatant.casualties, m.0gmkgpk
m.04yxf4y, military.military_command.military_commander, Robert E. Lee
Robert E. Lee, military.military_commander.military_commands, m.062vc3l
George Armstrong Custer, military.military_person.participated_in_conflicts, Battle of Chancellorsville
An Honorable Defeat: The Last Days of the Confederate Government, book.book.genre, Non-fiction
Battle of Chancellorsville, military.military_conflict.military_personnel_involved, Joseph B. Kershaw
James S. Wadsworth, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Military unit, type.type.properties, Place of origin
Battle of Chancellorsville, base.americancivilwar.battle.military_units_involved_in_this_conflict, Army of the Potomac
Battle of Chancellorsville, military.military_conflict.military_personnel_involved, George Armstrong Custer
John F. Reynolds, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Albion P. Howe, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Robert E. Lee, military.military_commander.military_commands, m.0c05jvk
Confederate States of America, military.military_combatant.military_commanders, m.0gmlnlq
Confederate States of America, military.military_combatant.military_commanders, m.049y2vg
Robert E. Lee, base.kwebbase.kwtopic.connections_from, robert edward lee fought general george brinton mcclellan
m.04yvq3w, military.military_command.military_combatant, Confederate States of America
m.049y352, military.military_command.military_commander, Robert E. Lee
James S. Robinson, military.military_person.participated_in_conflicts, Battle of Chancellorsville
m.049y34w, military.military_command.military_combatant, Confederate States of America
m.07y5lpg, military.military_command.military_commander, Robert E. Lee
George Armstrong Custer, military.military_person.participated_in_conflicts, American Civil War
Robert E. Lee, military.military_person.participated_in_conflicts, Battle of Chancellorsville
William Barksdale, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Hubert Dilger, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Confederate States of America, military.military_combatant.military_commanders, m.0c1sz04
Army of Northern Virginia, organization.organization.child, m.0gllvng
Richard S. Ewell, military.military_person.participated_in_conflicts, Battle of Chancellorsville
George P. Doles, military.military_person.participated_in_conflicts, American Civil War
Robert E. Lee, base.kwebbase.kwtopic.has_sentences, In May 1864, a newly appointed Union commanding general Grant, drove against the Confederate forces.
Robert E. Lee, military.military_commander.military_commands, m.049y372
General Lee's Army, common.topic.notable_for, g.1257bp19l
Ambrose R. Wright, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Robert E. Lee, military.military_commander.military_commands, m.05npp01
Confederate States of America, military.military_combatant.military_commanders, m.049y2m5
J. H. Hobart Ward, military.military_person.participated_in_conflicts, American Civil War
Confederate States of America, military.military_combatant.force_deployments, m.0cnmfsz
Robert E. Lee, base.kwebbase.kwtopic.has_sentences, Within three weeks Lee had organized Confederate troops into what became the famed Army of Northern Virginia.
John C. Caldwell, military.military_person.participated_in_conflicts, American Civil War
Robert E. Lee, base.kwebbase.kwtopic.has_sentences, Lee could only place his starving men in defensive lines in front of Petersburg and Richmond.
Confederate States Army, common.topic.image, Some Confederate soldiers
David B. Birney, military.military_person.participated_in_conflicts, American Civil War
m.04fvbbv, military.military_command.military_commander, Robert E. Lee
Military memoirs of a Confederate, book.written_work.subjects, History
Military unit, type.type.domain, Military
m.049ylkz, military.military_command.military_combatant, Confederate States of America
Robert E. Lee, military.military_commander.military_commands, m.04fvgft
Edward Lloyd Thomas, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Army of the Potomac, military.military_unit.unit_size, Field army
Edward E. Cross, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Confederate States of America, military.military_combatant.military_commanders, m.049y2qw
m.04fvbh3, military.military_command.military_commander, Robert E. Lee
Confederate States of America, military.military_combatant.casualties, m.0cnmgn7
Robert E. Lee, military.military_commander.military_commands, m.0w5rz8p
Amiel Weeks Whipple, military.military_person.participated_in_conflicts, Battle of Chancellorsville
m.049y2m5, military.military_command.military_combatant, Confederate States of America
Confederate States Army, common.topic.notable_types, Armed Force
Confederate States Marine Corps, military.armed_force.military_combatant, Confederate States of America
Henry Heth, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Joseph Hooker, military.military_person.participated_in_conflicts, American Civil War
Paul Jones Semmes, military.military_person.participated_in_conflicts, Battle of Chancellorsville
William Henry Fitzhugh Lee, military.military_person.participated_in_conflicts, American Civil War
Confederate States of America, military.military_combatant.force_deployments, m.049y37l
Military unit, freebase.type_profile.strict_included_types, Agent
Robert E. Lee, organization.organization_founder.organizations_founded, Army of Northern Virginia
Virginia, location.location.events, Battle of Chancellorsville
Alfred Iverson, Jr., military.military_person.participated_in_conflicts, Battle of Chancellorsville
Army of Northern Virginia, common.topic.article, m.0fy77
An Honorable Defeat: The Last Days of the Confederate Government, common.topic.notable_types, Book
George Meade, military.military_person.participated_in_conflicts, American Civil War
Joseph B. Kershaw, military.military_person.participated_in_conflicts, American Civil War
General Robert E. Lee, commander of the Army of Northern Virginia, common.image.size, m.02bpt61
United States of America, location.country.administrative_divisions, Virginia
Edward Porter Alexander, military.military_person.participated_in_conflicts, Battle of Chancellorsville
General Lee's Army, book.written_work.subjects, American Civil War
m.062tpcg, military.military_command.military_commander, Robert E. Lee
J. H. Hobart Ward, military.military_person.participated_in_conflicts, Battle of Chancellorsville
James S. Robinson, military.military_person.participated_in_conflicts, American Civil War
James J. Archer, people.deceased_person.place_of_death, Richmond
Adolph von Steinwehr, military.military_person.participated_in_conflicts, Battle of Chancellorsville
m.0gmkgm8, military.military_command.military_combatant, Confederate States of America
m.049y372, military.military_command.military_combatant, Confederate States of America
Confederate States of America, military.military_combatant.military_commanders, m.049y34w
Henry Fink, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Confederate States of America, book.book_subject.works, Why the North Won the Civil War
Army of Northern Virginia, military.military_unit.servicemembers, m.0gllvhm
Battle of Chancellorsville, base.americancivilwar.battle.military_units_involved_in_this_conflict, 2nd Louisiana Infantry Regiment
Raleigh E. Colston, military.military_person.participated_in_conflicts, Battle of Chancellorsville
m.048z_8v, military.military_command.military_combatant, Confederate States of America
Military unit, type.type.properties, Armed force
Thomas Francis Meagher, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Military memoirs of a Confederate, book.written_work.subjects, American Civil War
m.062vc3l, military.military_command.military_commander, Robert E. Lee
Military unit, type.type.expected_by, Units
William Mahone, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Army of Northern Virginia, organization.organization.founders, Robert E. Lee
Oliver O. Howard, military.military_person.participated_in_conflicts, American Civil War
William Mahone, military.military_person.participated_in_conflicts, American Civil War
John M. Jones, military.military_person.participated_in_conflicts, American Civil War
William T. Wofford, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Virginia, location.us_state.capital, Richmond
Field army, military.military_unit_size.units_of_this_type, Army of the Potomac
Army of Northern Virginia, military.military_unit.armed_force, Confederate States Army
m.049y37l, military.force_strength.combatant, Confederate States of America
Army of Northern Virginia, common.topic.image, General Robert E. Lee, commander of the Army of Northern Virginia
Virginia, location.administrative_division.country, United States of America
Edward Porter Alexander, book.author.works_written, Military memoirs of a Confederate
15th Louisiana Infantry Regiment, base.americancivilwar.military_unit.conflicts_participated_in, Battle of Chancellorsville
Elon J. Farnsworth, military.military_person.participated_in_conflicts, American Civil War
Henry Warner Slocum, military.military_person.participated_in_conflicts, American Civil War
m.0gmkfgp, military.casualties.combatant, Confederate States of America
Confederate States of America, military.military_combatant.military_commanders, m.04yvq3w
General Lee's Army, book.written_work.subjects, Robert E. Lee
General Lee's Army, book.book.editions, General Lee's Army: From Victory to Collapse
Army of Northern Virginia, military.military_unit.unit_size, Field army
Isaac E. Avery, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Thomas H. Ruger, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Robert E. Lee, military.military_commander.military_commands, m.05t5rj7
Army of Northern Virginia, common.topic.notable_for, g.125gphbt1
General Lee's Army, book.written_work.author, Joseph Glatthaar
John Newton, military.military_person.participated_in_conflicts, Battle of Chancellorsville
An Honorable Defeat: The Last Days of the Confederate Government, book.written_work.subjects, Confederate States of America
Confederate States Army, organization.organization.child, m.0gllvl5
John F. Reynolds, military.military_person.participated_in_conflicts, American Civil War
Nathaniel McLean, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Confederate States of America, military.military_combatant.military_commanders, m.049ylkz
Confederate States Army, common.topic.notable_for, g.125dm_v02
Robert E. Lee, people.deceased_person.cause_of_death, Pneumonia
Seth Barton, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Andrew A. Humphreys, military.military_person.participated_in_conflicts, American Civil War
Army of Northern Virginia, organization.organization.founders, Robert E. Lee
Arlington House, The Robert E. Lee Memorial, base.usnationalparks.us_national_park.state, Virginia
Goode Bryan, military.military_person.participated_in_conflicts, Battle of Chancellorsville
Confederate States of America, military.military_combatant.force_deployments, m.0gmkfkv
Robert E. Lee, military.military_person.service, m.012z83yv
Charles Griffin, military.military_person.participated_in_conflicts, Battle of Chancellorsville
m.04fvgcw, military.military_command.military_commander, Robert E. Lee
Robert E. Lee, military.military_person.service, m.0gllvhm
m.04fv9ft, military.military_command.military_commander, Robert E. Lee
Alfred Moore Scales, military.military_person.participated_in_conflicts, Battle of Chancellorsville
William Dorsey Pender, military.military_person.participated_in_conflicts, Battle of Chancellorsville
m.049y342, military.military_combatant_group.combatants, Confederate States of America
United States of America, location.country.first_level_divisions, Virginia
David B. Birney, military.military_person.participated_in_conflicts, Battle of Chancellorsville
General Lee's Army, common.topic.notable_types, Book
General Lee's Army, book.book.genre, History
Army of the Potomac, common.topic.notable_types, Military unit
Robert E. Lee, military.military_commander.military_commands, m.0h400yy
P.G.T. Beauregard, book.written_work.subjects, Confederate States of America
Robert E. Lee, military.military_commander.military_commands, m.04fvg8c

Answer: Pneumonia