Triple

T14773070
Position Surface form Disambiguated ID Type / Status
Subject Amtrak Downeaster E347183 entity
Predicate extendedMarket P115736 FINISHED
Object Boston–Brunswick corridor
The Boston–Brunswick corridor is a passenger rail route in New England linking Boston, Massachusetts with Brunswick, Maine, serving key intermediate cities and communities along the way.
E83052 NE FINISHED

How this triple was built (5 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: Boston–Brunswick corridor | Statement: [Amtrak Downeaster, extendedMarket, Boston–Brunswick corridor]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Boston–Brunswick corridor
Context triple: [Amtrak Downeaster, extendedMarket, Boston–Brunswick corridor]
  • A. I-95 Northeast Corridor
    The I-95 Northeast Corridor is a heavily traveled stretch of Interstate 95 running through major cities in the northeastern United States, serving as a key artery for regional and long-distance traffic.
  • B. Princeton–New Brunswick corridor
    The Princeton–New Brunswick corridor is a suburban region in central New Jersey characterized by residential communities, corporate campuses, and research institutions situated between the cities of Princeton and New Brunswick.
  • C. Berkshire Connector
    The Berkshire Connector is a tolled highway segment in New York that links the New York State Thruway with the Massachusetts Turnpike, facilitating east–west travel between the two states.
  • D. Boston–Albany rail corridor
    The Boston–Albany rail corridor is a key east–west passenger and freight rail route linking Boston, Massachusetts with Albany, New York across the heart of New England.
  • E. Boston–Portland main line
    The Boston–Portland main line is a historic New England railroad corridor connecting Boston, Massachusetts, with Portland, Maine, that has long served as a key passenger and freight route along the region’s coast.
  • 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: Boston–Brunswick corridor
Triple: [Amtrak Downeaster, extendedMarket, Boston–Brunswick corridor]
Generated description
The Boston–Brunswick corridor is a passenger rail route in New England linking Boston, Massachusetts with Brunswick, Maine, serving key intermediate cities and communities along the way.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Boston–Brunswick corridor
Target entity description: The Boston–Brunswick corridor is a passenger rail route in New England linking Boston, Massachusetts with Brunswick, Maine, serving key intermediate cities and communities along the way.
  • A. I-95 Northeast Corridor
    The I-95 Northeast Corridor is a heavily traveled stretch of Interstate 95 running through major cities in the northeastern United States, serving as a key artery for regional and long-distance traffic.
  • B. Princeton–New Brunswick corridor
    The Princeton–New Brunswick corridor is a suburban region in central New Jersey characterized by residential communities, corporate campuses, and research institutions situated between the cities of Princeton and New Brunswick.
  • C. Berkshire Connector
    The Berkshire Connector is a tolled highway segment in New York that links the New York State Thruway with the Massachusetts Turnpike, facilitating east–west travel between the two states.
  • D. Boston–Albany rail corridor
    The Boston–Albany rail corridor is a key east–west passenger and freight rail route linking Boston, Massachusetts with Albany, New York across the heart of New England.
  • E. Boston–Portland main line chosen
    The Boston–Portland main line is a historic New England railroad corridor connecting Boston, Massachusetts, with Portland, Maine, that has long served as a key passenger and freight route along the region’s coast.
  • F. None of above.
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: extendedMarket
Context triple: [Amtrak Downeaster, extendedMarket, Boston–Brunswick corridor]
  • A. extendedIn
    Indicates that one entity continues, prolongs, or expands the scope, duration, or range of another entity.
  • B. extendedInCase
    Indicates that one entity is lengthened, prolonged, or expanded when a particular condition or case applies.
  • C. extensionPotential
    Indicates the potential or likelihood that an existing arrangement, contract, or state will be extended beyond its current term or scope.
  • D. extendedFrom
    Indicates that one entity is derived by adding to or building upon the scope, content, or structure of another entity.
  • E. extendsBeyond
    Indicates that one entity continues past or surpasses the spatial, temporal, or conceptual limits of another entity.
  • F. None of above. chosen

Provenance (7 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_69d822e9b9e08190bedcc31a163fda82 completed April 9, 2026, 10:06 p.m.
NER Named-entity recognition batch_69dec81485e08190be35baafcf22b6f2 completed April 14, 2026, 11:04 p.m.
NED1 Entity disambiguation (via context triple) batch_69fe24b41df881908119e183b8299c48 completed May 8, 2026, 6 p.m.
NEDg Description generation batch_69fe276bff648190a6be5d25182accd5 completed May 8, 2026, 6:11 p.m.
NED2 Entity disambiguation (via description) batch_69fe27c3fce48190914e2a84b1de527c completed May 8, 2026, 6:13 p.m.
PD Predicate disambiguation batch_69de8c02e5c08190943c27594026faf7 completed April 14, 2026, 6:48 p.m.
PDg Predicate description generation batch_69de8f4b67cc8190b84b59fcec5cf579 completed April 14, 2026, 7:02 p.m.
Created at: April 10, 2026, 1:31 a.m.