Triple

T90109
Position Surface form Disambiguated ID Type / Status
Subject Lawrence E1810 entity
Predicate railLine P848 FINISHED
Object Haverhill Line
The Haverhill Line is a Massachusetts Bay Transportation Authority commuter rail route running between Boston and the city of Haverhill, serving communities in the Merrimack Valley.
E14322 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: Haverhill Line | Statement: [Lawrence, railLine, Haverhill Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Haverhill Line
Context triple: [Lawrence, railLine, Haverhill Line]
  • A. MBTA Fitchburg Line
    The MBTA Fitchburg Line is a commuter rail route in the Greater Boston area that runs between Boston and Fitchburg, serving numerous suburban communities along the way.
  • B. Bury Line
    The Bury Line is a light rail route on Greater Manchester's Metrolink network that connects central Manchester with the town of Bury to the north.
  • C. Eccles Line
    The Eccles Line is a light rail route on Greater Manchester's Metrolink network that connects Manchester city centre with the suburb of Eccles via Salford Quays and MediaCityUK.
  • D. Green Line
    The Green Line is one of the color-coded rapid transit routes in the Washington Metro system, serving key neighborhoods in Washington, D.C. and parts of Maryland.
  • E. Silver Line
    The Silver Line is a rapid transit route in the Washington Metro system that serves northern Virginia suburbs, including Tysons and Reston, and connects them to Washington, D.C.
  • 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: Haverhill Line
Triple: [Lawrence, railLine, Haverhill Line]
Generated description
The Haverhill Line is a Massachusetts Bay Transportation Authority commuter rail route running between Boston and the city of Haverhill, serving communities in the Merrimack Valley.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Haverhill Line
Target entity description: The Haverhill Line is a Massachusetts Bay Transportation Authority commuter rail route running between Boston and the city of Haverhill, serving communities in the Merrimack Valley.
  • A. MBTA Fitchburg Line
    The MBTA Fitchburg Line is a commuter rail route in the Greater Boston area that runs between Boston and Fitchburg, serving numerous suburban communities along the way.
  • B. Bury Line
    The Bury Line is a light rail route on Greater Manchester's Metrolink network that connects central Manchester with the town of Bury to the north.
  • C. Eccles Line
    The Eccles Line is a light rail route on Greater Manchester's Metrolink network that connects Manchester city centre with the suburb of Eccles via Salford Quays and MediaCityUK.
  • D. Green Line
    The Green Line is one of the color-coded rapid transit routes in the Washington Metro system, serving key neighborhoods in Washington, D.C. and parts of Maryland.
  • E. Silver Line
    The Silver Line is a rapid transit route in the Washington Metro system that serves northern Virginia suburbs, including Tysons and Reston, and connects them to Washington, D.C.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: railLine
Context triple: [Lawrence, railLine, Haverhill Line]
  • A. railwayLine chosen
    Indicates that there is a railway line connection or route associated with or passing through the referenced entity.
  • B. hasRailSystem
    Indicates that an entity possesses or is served by a rail-based transportation system.
  • C. hasRailStation
    Indicates that one entity possesses, contains, or is served by a rail station.
  • D. trains
    Indicates that one entity teaches, instructs, or coaches another entity to develop skills, knowledge, or abilities.
  • E. transportCorridor
    Indicates a route or pathway used to move people, goods, or resources between locations.
  • F. None of above.

Provenance (6 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_69a24d1a97dc819094e6c021fe9b05a7 completed Feb. 28, 2026, 2:04 a.m.
NER Named-entity recognition batch_69a24feef1b08190bb9525f71cce053e completed Feb. 28, 2026, 2:16 a.m.
NED1 Entity disambiguation (via context triple) batch_69a29e45d6488190bc982137255c79f9 completed Feb. 28, 2026, 7:50 a.m.
NEDg Description generation batch_69a2a04b1d008190aa1b353cb239de69 completed Feb. 28, 2026, 7:59 a.m.
NED2 Entity disambiguation (via description) batch_69a2a17dd35c81909b90cae5ad204aae completed Feb. 28, 2026, 8:04 a.m.
PD Predicate disambiguation batch_69a24eb82d408190b0f9c786152e8e4c completed Feb. 28, 2026, 2:11 a.m.
Created at: Feb. 28, 2026, 2:07 a.m.