Triple

T9304892
Position Surface form Disambiguated ID Type / Status
Subject Gwynns Falls E223857 entity
Predicate flowsInto P408 FINISHED
Object Middle Branch of the Patapsco River
The Middle Branch of the Patapsco River is a tidal estuarine section of the Patapsco in Baltimore, Maryland, known for its industrial shoreline, waterfront parks, and role in the city’s harbor system.
E792456 NE FINISHED

How this triple was built (4 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
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: Middle Branch of the Patapsco River | Statement: [Gwynns Falls, flowsInto, Middle Branch of the Patapsco River]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Middle Branch of the Patapsco River
Context triple: [Gwynns Falls, flowsInto, Middle Branch of the Patapsco River]
  • A. North Branch Patapsco River
    The North Branch Patapsco River is a principal headwater stream of the Patapsco River in central Maryland, contributing significantly to the river system that ultimately flows into the Chesapeake Bay.
  • B. South Branch Patapsco River
    The South Branch Patapsco River is a principal headwater stream of Maryland’s Patapsco River, flowing through rural and forested areas before contributing to the river system that ultimately feeds into the Chesapeake Bay.
  • C. Patapsco River
    The Patapsco River is a major waterway in central Maryland that flows into the Chesapeake Bay and forms the harbor of Baltimore.
  • D. West River (Maryland)
    West River (Maryland) is a tidal tributary of the Chesapeake Bay located in Anne Arundel County, Maryland, known for its boating, fishing, and waterfront communities.
  • E. North Branch Potomac River
    The North Branch Potomac River is the upper, more remote headwaters section of the Potomac River, flowing along the border of Maryland and West Virginia and supplying a major portion of the Potomac’s overall drainage.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Middle Branch of the Patapsco River
Triple: [Gwynns Falls, flowsInto, Middle Branch of the Patapsco River]
Generated description
The Middle Branch of the Patapsco River is a tidal estuarine section of the Patapsco in Baltimore, Maryland, known for its industrial shoreline, waterfront parks, and role in the city’s harbor system.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Middle Branch of the Patapsco River
Target entity description: The Middle Branch of the Patapsco River is a tidal estuarine section of the Patapsco in Baltimore, Maryland, known for its industrial shoreline, waterfront parks, and role in the city’s harbor system.
  • A. North Branch Patapsco River
    The North Branch Patapsco River is a principal headwater stream of the Patapsco River in central Maryland, contributing significantly to the river system that ultimately flows into the Chesapeake Bay.
  • B. South Branch Patapsco River
    The South Branch Patapsco River is a principal headwater stream of Maryland’s Patapsco River, flowing through rural and forested areas before contributing to the river system that ultimately feeds into the Chesapeake Bay.
  • C. Patapsco River
    The Patapsco River is a major waterway in central Maryland that flows into the Chesapeake Bay and forms the harbor of Baltimore.
  • D. West River (Maryland)
    West River (Maryland) is a tidal tributary of the Chesapeake Bay located in Anne Arundel County, Maryland, known for its boating, fishing, and waterfront communities.
  • E. North Branch Potomac River
    The North Branch Potomac River is the upper, more remote headwaters section of the Potomac River, flowing along the border of Maryland and West Virginia and supplying a major portion of the Potomac’s overall drainage.
  • F. None of above. chosen

Provenance (5 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69ca8424d0f08190831e2e93c6533aeb completed March 30, 2026, 2:09 p.m.
NER Named-entity recognition batch_69cd1da623ac81908bab6dfb1bbce25d completed April 1, 2026, 1:29 p.m.
NED1 Entity disambiguation (via context triple) batch_69d0e3924df4819095490983615b2aae completed April 4, 2026, 10:10 a.m.
NEDg Description generation batch_69d0e502b68081909a9f9476421ba9b5 completed April 4, 2026, 10:16 a.m.
NED2 Entity disambiguation (via description) batch_69d0e5af7360819096c6295de0ce5f32 completed April 4, 2026, 10:19 a.m.
Created at: March 30, 2026, 7:36 p.m.