Triple

T15602826
Position Surface form Disambiguated ID Type / Status
Subject Neponset River Reservation E375074 entity
Predicate near P350 FINISHED
Object Mattapan neighborhood of Boston
The Mattapan neighborhood of Boston is a predominantly residential, historically diverse area in the southern part of the city known for its strong Caribbean and African American communities.
 E1167957 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: Mattapan neighborhood of Boston | Statement: [Neponset River Reservation, near, Mattapan neighborhood of Boston]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Mattapan neighborhood of Boston
Context triple: [Neponset River Reservation, near, Mattapan neighborhood of Boston]
  • A. Dorchester neighborhood of Boston
    The Dorchester neighborhood of Boston is a large, diverse residential area known for its historic streets, vibrant immigrant communities, and active commercial hubs.
  • B. South End neighborhood of Boston
    The South End neighborhood of Boston is a historic, culturally diverse residential district known for its Victorian brownstone architecture, vibrant arts scene, and numerous restaurants and cafes.
  • C. Allston neighborhood of Boston
    The Allston neighborhood of Boston is a vibrant, densely populated area known for its large student and young professional population, diverse immigrant communities, and lively music, arts, and nightlife scenes.
  • D. Roxbury neighborhood of Boston
    The Roxbury neighborhood of Boston is a historically significant, predominantly African American community known for its rich cultural heritage, activism, and ongoing urban revitalization.
  • E. Charlestown neighborhood of Boston
    The Charlestown neighborhood of Boston is a historic waterfront district located on a peninsula north of downtown, known for landmarks like the Bunker Hill Monument and the Charlestown Navy Yard.
  • 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: Mattapan neighborhood of Boston
Triple: [Neponset River Reservation, near, Mattapan neighborhood of Boston]
Generated description
The Mattapan neighborhood of Boston is a predominantly residential, historically diverse area in the southern part of the city known for its strong Caribbean and African American communities.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Mattapan neighborhood of Boston
Target entity description: The Mattapan neighborhood of Boston is a predominantly residential, historically diverse area in the southern part of the city known for its strong Caribbean and African American communities.
  • A. Dorchester neighborhood of Boston
    The Dorchester neighborhood of Boston is a large, diverse residential area known for its historic streets, vibrant immigrant communities, and active commercial hubs.
  • B. South End neighborhood of Boston
    The South End neighborhood of Boston is a historic, culturally diverse residential district known for its Victorian brownstone architecture, vibrant arts scene, and numerous restaurants and cafes.
  • C. Allston neighborhood of Boston
    The Allston neighborhood of Boston is a vibrant, densely populated area known for its large student and young professional population, diverse immigrant communities, and lively music, arts, and nightlife scenes.
  • D. Roxbury neighborhood of Boston
    The Roxbury neighborhood of Boston is a historically significant, predominantly African American community known for its rich cultural heritage, activism, and ongoing urban revitalization.
  • E. Charlestown neighborhood of Boston
    The Charlestown neighborhood of Boston is a historic waterfront district located on a peninsula north of downtown, known for landmarks like the Bunker Hill Monument and the Charlestown Navy Yard.
  • 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_69d85cce25008190b13b52745fbd719b completed April 10, 2026, 2:13 a.m.
NER Named-entity recognition batch_69e04e6399d88190b2c3e781667666d4 completed April 16, 2026, 2:50 a.m.
NED1 Entity disambiguation (via context triple) batch_69ff5f37383c81909d0efce84508a034 completed May 9, 2026, 4:22 p.m.
NEDg Description generation batch_69ff608edeec8190a7f847c682772cd4 completed May 9, 2026, 4:27 p.m.
NED2 Entity disambiguation (via description) batch_69ff6136a8c88190a83ad9232a338082 completed May 9, 2026, 4:30 p.m.
Created at: April 10, 2026, 4:12 a.m.