Triple

T20791641
Position Surface form Disambiguated ID Type / Status
Subject Battle of Williamsport E511791 entity
Predicate followedBy P78 FINISHED
Object Crossing of the Potomac River by the Army of Northern Virginia — NE NERFINISHED

Named-entity recognition

Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.

Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Crossing of the Potomac River by the Army of Northern Virginia | Statement: [Battle of Williamsport, followedBy, Crossing of the Potomac River by the Army of Northern Virginia]

Disambiguation candidates (2 decisions)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Crossing of the Potomac River by the Army of Northern Virginia
Context triple: [Battle of Williamsport, followedBy, Crossing of the Potomac River by the Army of Northern Virginia]
  • A. Battle of North Anna
    The Battle of North Anna was an 1864 American Civil War engagement in Virginia during Ulysses S. Grant’s Overland Campaign, where Robert E. Lee’s Army of Northern Virginia used a strong inverted “V” defensive line to temporarily halt the Union advance.
  • B. Maryland Campaign
    The Maryland Campaign was Confederate General Robert E. Lee’s first major invasion of the North during the American Civil War in 1862, culminating in the Battle of Antietam.
  • C. Battle of Rappahannock Station
    The Battle of Rappahannock Station was an American Civil War engagement in November 1863 in Virginia, where Union forces successfully stormed Confederate fortifications along the Rappahannock River, securing a significant tactical victory.
  • D. Rappahannock campaigns
    The Rappahannock campaigns were a series of American Civil War operations and battles along Virginia’s Rappahannock River, primarily involving Union and Confederate forces maneuvering for control of key crossings and approaches to Richmond.
  • E. Appomattox Campaign
    The Appomattox Campaign was the final series of military operations in the American Civil War that led to the surrender of Confederate General Robert E. Lee’s Army of Northern Virginia in April 1865.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Crossing of the Potomac River by the Army of Northern Virginia
Target entity description: The Crossing of the Potomac River by the Army of Northern Virginia was the Confederate retreat of Robert E. Lee’s forces back into Virginia after the Gettysburg Campaign, marking the end of their invasion of the North.
  • A. Battle of North Anna
    The Battle of North Anna was an 1864 American Civil War engagement in Virginia during Ulysses S. Grant’s Overland Campaign, where Robert E. Lee’s Army of Northern Virginia used a strong inverted “V” defensive line to temporarily halt the Union advance.
  • B. Maryland Campaign
    The Maryland Campaign was Confederate General Robert E. Lee’s first major invasion of the North during the American Civil War in 1862, culminating in the Battle of Antietam.
  • C. Battle of Rappahannock Station
    The Battle of Rappahannock Station was an American Civil War engagement in November 1863 in Virginia, where Union forces successfully stormed Confederate fortifications along the Rappahannock River, securing a significant tactical victory.
  • D. Rappahannock campaigns
    The Rappahannock campaigns were a series of American Civil War operations and battles along Virginia’s Rappahannock River, primarily involving Union and Confederate forces maneuvering for control of key crossings and approaches to Richmond.
  • E. Appomattox Campaign
    The Appomattox Campaign was the final series of military operations in the American Civil War that led to the surrender of Confederate General Robert E. Lee’s Army of Northern Virginia in April 1865.
  • F. None of above. chosen

Provenance (2 batches)

Stage Batch ID Job type Status
creating batch_69e0b4cb83948190bd57bec21d78ed53 elicitation completed
NER batch_69e6c2910d488190bc4be37512effc86 ner completed
Created at: April 16, 2026, 12:38 p.m.