Triple

T1797558
Position Surface form Disambiguated ID Type / Status
Subject Metrolink (Southern California) E39638 entity
Predicate hasLine P35 FINISHED
Object Arrow (San Bernardino–Redlands) service
Arrow (San Bernardino–Redlands) service is a Southern California commuter rail line connecting San Bernardino and Redlands as part of the Metrolink regional rail network.
 E201390 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: Arrow (San Bernardino–Redlands) service | Statement: [Metrolink (Southern California), hasLine, Arrow (San Bernardino–Redlands) service]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Arrow (San Bernardino–Redlands) service
Context triple: [Metrolink (Southern California), hasLine, Arrow (San Bernardino–Redlands) service]
  • A. Fresno Area Express bus service
    Fresno Area Express bus service is the primary public transit system in Fresno, California, operating local bus routes throughout the city and surrounding areas.
  • B. Metrolink San Bernardino Line
    The Metrolink San Bernardino Line is a Southern California commuter rail route connecting San Bernardino and surrounding Inland Empire communities with downtown Los Angeles.
  • C. Metrolink Antelope Valley Line
    The Metrolink Antelope Valley Line is a Southern California commuter rail route that connects Los Angeles with communities in the Antelope Valley, including Lancaster and Palmdale.
  • D. Amtrak Capitol Corridor
    Amtrak Capitol Corridor is a passenger rail service in Northern California that connects Sacramento, the San Francisco Bay Area, and San Jose with frequent, commuter-oriented trains.
  • E. LAX–Union Station route
    The LAX–Union Station route is a FlyAway Bus service that provides direct, frequent shuttle transportation between Los Angeles International Airport and downtown’s Union Station.
  • 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: Arrow (San Bernardino–Redlands) service
Triple: [Metrolink (Southern California), hasLine, Arrow (San Bernardino–Redlands) service]
Generated description
Arrow (San Bernardino–Redlands) service is a Southern California commuter rail line connecting San Bernardino and Redlands as part of the Metrolink regional rail network.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Arrow (San Bernardino–Redlands) service
Target entity description: Arrow (San Bernardino–Redlands) service is a Southern California commuter rail line connecting San Bernardino and Redlands as part of the Metrolink regional rail network.
  • A. Fresno Area Express bus service
    Fresno Area Express bus service is the primary public transit system in Fresno, California, operating local bus routes throughout the city and surrounding areas.
  • B. Metrolink San Bernardino Line
    The Metrolink San Bernardino Line is a Southern California commuter rail route connecting San Bernardino and surrounding Inland Empire communities with downtown Los Angeles.
  • C. Metrolink Antelope Valley Line
    The Metrolink Antelope Valley Line is a Southern California commuter rail route that connects Los Angeles with communities in the Antelope Valley, including Lancaster and Palmdale.
  • D. Amtrak Capitol Corridor
    Amtrak Capitol Corridor is a passenger rail service in Northern California that connects Sacramento, the San Francisco Bay Area, and San Jose with frequent, commuter-oriented trains.
  • E. LAX–Union Station route
    The LAX–Union Station route is a FlyAway Bus service that provides direct, frequent shuttle transportation between Los Angeles International Airport and downtown’s Union Station.
  • 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_69a88632aa588190ba3978fde0db5bbd completed March 4, 2026, 7:21 p.m.
NER Named-entity recognition batch_69aa6566cd808190a67f33ad47d8ca8e completed March 6, 2026, 5:25 a.m.
NED1 Entity disambiguation (via context triple) batch_69adb5d6cee88190b26814134037aba6 completed March 8, 2026, 5:45 p.m.
NEDg Description generation batch_69adb8b626688190b4953d4549339dea completed March 8, 2026, 5:58 p.m.
NED2 Entity disambiguation (via description) batch_69adb9253fa08190bfb7d245208150c0 completed March 8, 2026, 6 p.m.
Created at: March 4, 2026, 7:32 p.m.