Triple

T1545998
Position Surface form Disambiguated ID Type / Status
Subject Redlands, California E32977 entity
Predicate isServedBy P1293 FINISHED
Object Arrow rail line
Arrow rail line is a passenger rail service in Southern California that connects Redlands with the broader regional rail network.
E175698 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 rail line | Statement: [Redlands, California, isServedBy, Arrow rail line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Arrow rail line
Context triple: [Redlands, California, isServedBy, Arrow rail line]
  • A. Pelham Line
    The Pelham Line is a New York City Subway route in the Bronx and Manhattan, operated by the IRT division and primarily served by the 6 train.
  • B. Borders Railway
    Borders Railway is a Scottish rail line that reconnects Edinburgh with the Scottish Borders and Midlothian, serving as one of the longest new domestic railway lines built in the UK in recent decades.
  • C. Heritage Corridor line
    The Heritage Corridor line is a Metra commuter rail service in the Chicago area that runs southwest from downtown Chicago to Joliet, primarily following the historic Illinois & Michigan Canal corridor.
  • D. Pink Line
    The Pink Line is a rapid transit route in Chicago's "L" system that runs between the Loop and the city's West Side neighborhoods.
  • E. Watercress Line
    The Watercress Line is a preserved heritage railway in Hampshire, England, known for its steam-hauled trains running through the countryside between Alton and Alresford.
  • 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 rail line
Triple: [Redlands, California, isServedBy, Arrow rail line]
Generated description
Arrow rail line is a passenger rail service in Southern California that connects Redlands with the broader regional rail network.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Arrow rail line
Target entity description: Arrow rail line is a passenger rail service in Southern California that connects Redlands with the broader regional rail network.
  • A. Pelham Line
    The Pelham Line is a New York City Subway route in the Bronx and Manhattan, operated by the IRT division and primarily served by the 6 train.
  • B. Borders Railway
    Borders Railway is a Scottish rail line that reconnects Edinburgh with the Scottish Borders and Midlothian, serving as one of the longest new domestic railway lines built in the UK in recent decades.
  • C. Heritage Corridor line
    The Heritage Corridor line is a Metra commuter rail service in the Chicago area that runs southwest from downtown Chicago to Joliet, primarily following the historic Illinois & Michigan Canal corridor.
  • D. Pink Line
    The Pink Line is a rapid transit route in Chicago's "L" system that runs between the Loop and the city's West Side neighborhoods.
  • E. Watercress Line
    The Watercress Line is a preserved heritage railway in Hampshire, England, known for its steam-hauled trains running through the countryside between Alton and Alresford.
  • 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_69a885ed29088190a3c2d5a3d100c16e completed March 4, 2026, 7:20 p.m.
NER Named-entity recognition batch_69aa61fc0b5c8190bad34c17c3b46c7e completed March 6, 2026, 5:11 a.m.
NED1 Entity disambiguation (via context triple) batch_69ad309dcc3c819096a796a330a16de1 completed March 8, 2026, 8:17 a.m.
NEDg Description generation batch_69ad313ff5e48190bcd44f5211edf414 completed March 8, 2026, 8:20 a.m.
NED2 Entity disambiguation (via description) batch_69ad31edfb848190a3f7309fa1d2150a completed March 8, 2026, 8:23 a.m.
Created at: March 4, 2026, 7:26 p.m.