Triple

T17170383
Position Surface form Disambiguated ID Type / Status
Subject MARC Train station E416713 entity
Predicate hasService P182 FINISHED
Object MARC Camden Line
The MARC Camden Line is a Maryland commuter rail service that operates between Washington, D.C., and Baltimore along the historic Camden rail corridor.
E1255848 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: MARC Camden Line | Statement: [MARC Train station, hasService, MARC Camden Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: MARC Camden Line
Context triple: [MARC Train station, hasService, MARC Camden Line]
  • A. Coastal Line
    Coastal Line is a major Sri Lankan railway route running along the island’s western and southern coasts, linking Colombo with key coastal towns and cities.
  • B. Eastern Line
    The Eastern Line is a suburban rail service in Auckland, New Zealand, running between the city centre and eastern suburbs as part of the Auckland rail network.
  • C. Eastern Line
    The Eastern Line is a major railway corridor in Taiwan that runs along the island’s less urbanized east coast, connecting key cities and towns and supporting both passenger and freight transport.
  • D. MARC Penn Line
    The MARC Penn Line is a Maryland commuter rail service that runs along the Amtrak Northeast Corridor between Washington, D.C., and Perryville, serving numerous communities in Prince George’s County and beyond.
  • E. Harlem Line
    The Harlem Line is a major commuter rail line in New York State operated by Metro-North Railroad, running from Manhattan north through the Bronx and into suburban communities in Westchester, Putnam, and Dutchess counties.
  • 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: MARC Camden Line
Triple: [MARC Train station, hasService, MARC Camden Line]
Generated description
The MARC Camden Line is a Maryland commuter rail service that operates between Washington, D.C., and Baltimore along the historic Camden rail corridor.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: MARC Camden Line
Target entity description: The MARC Camden Line is a Maryland commuter rail service that operates between Washington, D.C., and Baltimore along the historic Camden rail corridor.
  • A. Coastal Line
    Coastal Line is a major Sri Lankan railway route running along the island’s western and southern coasts, linking Colombo with key coastal towns and cities.
  • B. Eastern Line
    The Eastern Line is a suburban rail service in Auckland, New Zealand, running between the city centre and eastern suburbs as part of the Auckland rail network.
  • C. Eastern Line
    The Eastern Line is a major railway corridor in Taiwan that runs along the island’s less urbanized east coast, connecting key cities and towns and supporting both passenger and freight transport.
  • D. MARC Penn Line
    The MARC Penn Line is a Maryland commuter rail service that runs along the Amtrak Northeast Corridor between Washington, D.C., and Perryville, serving numerous communities in Prince George’s County and beyond.
  • E. Harlem Line
    The Harlem Line is a major commuter rail line in New York State operated by Metro-North Railroad, running from Manhattan north through the Bronx and into suburban communities in Westchester, Putnam, and Dutchess counties.
  • 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_69d886d5f34c8190b24564dfaa63f3fb completed April 10, 2026, 5:12 a.m.
NER Named-entity recognition batch_69e3f91831d88190b262227fc41c9067 completed April 18, 2026, 9:35 p.m.
NED1 Entity disambiguation (via context triple) batch_6a015fc83984819098c98b75cf021e3a completed May 11, 2026, 4:49 a.m.
NEDg Description generation batch_6a0160beb4188190b6e9a91f50b6e276 completed May 11, 2026, 4:53 a.m.
NED2 Entity disambiguation (via description) batch_6a016158b1d081909b62cf73e14b3e78 completed May 11, 2026, 4:55 a.m.
Created at: April 10, 2026, 5:37 a.m.