Triple

T23051475
Position Surface form Disambiguated ID Type / Status
Subject Silver Line SL5 E574024 entity
Predicate hasServiceArea P82 FINISHED
Object Downtown Boston–Washington Street corridor
The Downtown Boston–Washington Street corridor is a major urban thoroughfare and transit corridor running through central Boston, lined with commercial, residential, and historic sites and heavily served by bus and bus rapid transit routes.
E1568518 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: Downtown Boston–Washington Street corridor | Statement: [Silver Line SL5, hasServiceArea, Downtown Boston–Washington Street corridor]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Downtown Boston–Washington Street corridor
Context triple: [Silver Line SL5, hasServiceArea, Downtown Boston–Washington Street corridor]
  • A. Massachusetts Avenue commercial corridor
    The Massachusetts Avenue commercial corridor is a major urban thoroughfare in Cambridge lined with shops, restaurants, and businesses that serves as one of the city’s primary retail and social hubs.
  • B. East Boston commercial corridor
    The East Boston commercial corridor is a key business district in East Boston featuring a dense mix of shops, restaurants, and services that serve local residents and visitors.
  • C. Charles River corridor
    The Charles River corridor is the stretch of urban and natural landscape that runs along the Charles River, linking Boston and its neighboring communities with parks, paths, and transportation routes.
  • D. Commercial Street (Boston)
    Commercial Street in Boston is a major waterfront thoroughfare in the North End that runs along the harbor and links key downtown and harborfront routes.
  • E. Boylston Street, Boston
    Boylston Street in Boston is a major downtown thoroughfare best known as the iconic finish-line location of the Boston Marathon.
  • 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: Downtown Boston–Washington Street corridor
Triple: [Silver Line SL5, hasServiceArea, Downtown Boston–Washington Street corridor]
Generated description
The Downtown Boston–Washington Street corridor is a major urban thoroughfare and transit corridor running through central Boston, lined with commercial, residential, and historic sites and heavily served by bus and bus rapid transit routes.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Downtown Boston–Washington Street corridor
Target entity description: The Downtown Boston–Washington Street corridor is a major urban thoroughfare and transit corridor running through central Boston, lined with commercial, residential, and historic sites and heavily served by bus and bus rapid transit routes.
  • A. Massachusetts Avenue commercial corridor
    The Massachusetts Avenue commercial corridor is a major urban thoroughfare in Cambridge lined with shops, restaurants, and businesses that serves as one of the city’s primary retail and social hubs.
  • B. East Boston commercial corridor
    The East Boston commercial corridor is a key business district in East Boston featuring a dense mix of shops, restaurants, and services that serve local residents and visitors.
  • C. Charles River corridor
    The Charles River corridor is the stretch of urban and natural landscape that runs along the Charles River, linking Boston and its neighboring communities with parks, paths, and transportation routes.
  • D. Commercial Street (Boston)
    Commercial Street in Boston is a major waterfront thoroughfare in the North End that runs along the harbor and links key downtown and harborfront routes.
  • E. Boylston Street, Boston
    Boylston Street in Boston is a major downtown thoroughfare best known as the iconic finish-line location of the Boston Marathon.
  • 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_69e245ba7ae48190be606dbc54120e39 completed April 17, 2026, 2:37 p.m.
NER Named-entity recognition batch_69f1867d010c8190bc5dba6758d0b797 completed April 29, 2026, 4:18 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0c0ae036908190a6cdcb74e0d28f82 completed May 19, 2026, 7:01 a.m.
NEDg Description generation batch_6a0c0e2dd7908190afa879304ef3ed17 completed May 19, 2026, 7:15 a.m.
NED2 Entity disambiguation (via description) batch_6a0c0eaa7f8c81908110341d34d92537 completed May 19, 2026, 7:18 a.m.
Created at: April 17, 2026, 3:54 p.m.