Triple

T11347689
Position Surface form Disambiguated ID Type / Status
Subject MBTA commuter rail terminals E268761 entity
Predicate hasTerminal P182 FINISHED
Object South Coast Rail terminals
South Coast Rail terminals are the planned Massachusetts Bay Transportation Authority commuter rail endpoints that will restore passenger rail service between Boston and the South Coast cities of New Bedford and Fall River.
E268761 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: South Coast Rail terminals | Statement: [MBTA commuter rail terminals, hasTerminal, South Coast Rail terminals]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: South Coast Rail terminals
Context triple: [MBTA commuter rail terminals, hasTerminal, South Coast Rail terminals]
  • A. MBTA commuter rail terminals
    MBTA commuter rail terminals are major passenger rail hubs in the Boston area that serve as endpoints and transfer points for regional trains connecting the city with its surrounding suburbs and communities.
  • B. Taunton railway station
    Taunton railway station is a major railway hub in Somerset, England, providing regional and long-distance services on the Great Western Main Line.
  • C. Newport station
    Newport station is a major PATH rapid transit stop in Jersey City, New Jersey, serving the Newport residential and commercial waterfront district with connections to Manhattan and other parts of the region.
  • D. MBTA Commuter Rail at South Station
    MBTA Commuter Rail at South Station is the regional rail service hub in downtown Boston that provides commuter train connections between the city and surrounding suburbs and cities across Massachusetts and neighboring states.
  • E. MBTA Commuter Rail stations
    MBTA Commuter Rail stations are passenger rail stops in the Greater Boston area that provide regional train service connecting outlying communities with Boston and other destinations on the Massachusetts Bay Transportation Authority network.
  • 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: South Coast Rail terminals
Triple: [MBTA commuter rail terminals, hasTerminal, South Coast Rail terminals]
Generated description
South Coast Rail terminals are the planned Massachusetts Bay Transportation Authority commuter rail endpoints that will restore passenger rail service between Boston and the South Coast cities of New Bedford and Fall River.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: South Coast Rail terminals
Target entity description: South Coast Rail terminals are the planned Massachusetts Bay Transportation Authority commuter rail endpoints that will restore passenger rail service between Boston and the South Coast cities of New Bedford and Fall River.
  • A. MBTA commuter rail terminals chosen
    MBTA commuter rail terminals are major passenger rail hubs in the Boston area that serve as endpoints and transfer points for regional trains connecting the city with its surrounding suburbs and communities.
  • B. Taunton railway station
    Taunton railway station is a major railway hub in Somerset, England, providing regional and long-distance services on the Great Western Main Line.
  • C. Newport station
    Newport station is a major PATH rapid transit stop in Jersey City, New Jersey, serving the Newport residential and commercial waterfront district with connections to Manhattan and other parts of the region.
  • D. MBTA Commuter Rail at South Station
    MBTA Commuter Rail at South Station is the regional rail service hub in downtown Boston that provides commuter train connections between the city and surrounding suburbs and cities across Massachusetts and neighboring states.
  • E. MBTA Commuter Rail stations
    MBTA Commuter Rail stations are passenger rail stops in the Greater Boston area that provide regional train service connecting outlying communities with Boston and other destinations on the Massachusetts Bay Transportation Authority network.
  • F. None of above.

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_69d6aacbe18081909e5fadb50082dd96 completed April 8, 2026, 7:21 p.m.
NER Named-entity recognition batch_69d7ea214bb88190bb66f7fd3ef73081 completed April 9, 2026, 6:04 p.m.
NED1 Entity disambiguation (via context triple) batch_69e5438d7b58819093cc1407fefe8ab5 completed April 19, 2026, 9:05 p.m.
NEDg Description generation batch_69e548bb7be4819093aeeaf0c048033e completed April 19, 2026, 9:27 p.m.
NED2 Entity disambiguation (via description) batch_69e54eeba4a88190af128a99c277853a completed April 19, 2026, 9:53 p.m.
Created at: April 8, 2026, 9:33 p.m.