Triple

T30719288
Position Surface form Disambiguated ID Type / Status
Subject Expo Line phase 1 E782106 entity
Predicate builtOnFormerRightOfWay P61989 FINISHED
Object Pacific Electric Santa Monica Air Line
The Pacific Electric Santa Monica Air Line was an early 20th-century interurban railway route in Los Angeles that connected downtown Los Angeles to Santa Monica as part of the Pacific Electric Railway system.
 E1927849 NE FINISHED

How this triple was built (3 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: Pacific Electric Santa Monica Air Line | Statement: [Expo Line phase 1, builtOnFormerRightOfWay, Pacific Electric Santa Monica Air Line]
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: Pacific Electric Santa Monica Air Line
Triple: [Expo Line phase 1, builtOnFormerRightOfWay, Pacific Electric Santa Monica Air Line]
Generated description
The Pacific Electric Santa Monica Air Line was an early 20th-century interurban railway route in Los Angeles that connected downtown Los Angeles to Santa Monica as part of the Pacific Electric Railway system.
PD Predicate disambiguation gpt-5-mini-2025-08-07 
Target predicate: builtOnFormerRightOfWay
Context triple: [Expo Line phase 1, builtOnFormerRightOfWay, Pacific Electric Santa Monica Air Line]
  • A. operatesOnFormerRightOfWayOf chosen
    Indicates that an entity (such as a route, line, or facility) runs along or uses the previous right-of-way corridor that was once occupied by another transportation or infrastructure alignment.
  • B. partlyBuiltOverBy
    Indicates that one entity is constructed so that it covers or overlaps only a portion of another entity’s area or structure.
  • C. formerOwnerOfRightOfWay
    Indicates that an entity previously held, but no longer holds, the legal right of way over a property or route.
  • D. laterBuiltOverBy
    Indicates that a structure or feature was constructed at a later time on top of, or replacing, an earlier one.
  • E. demolishedToMakeWayFor
    Indicates that one entity was intentionally destroyed or removed in order to create space for another entity or development.
  • 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_69f224acd24481908ed5f96f0d69b5dd completed April 29, 2026, 3:33 p.m.
NER Named-entity recognition batch_69f68f670b608190a0b6ab60d722b4e0 completed May 2, 2026, 11:57 p.m.
NED1 Entity disambiguation (via context triple) batch_6a289909757c81908ee20302620c7bcb completed June 9, 2026, 10:51 p.m.
NEDg Description generation batch_6a2899a5f87881909200941832511700 completed June 9, 2026, 10:54 p.m.
NED2 Entity disambiguation (via description) batch_6a289ad889f8819081a06ba9e3e19f1d completed June 9, 2026, 10:59 p.m.
PD Predicate disambiguation batch_69f68b7b03488190b1db5fde4c7dd6e5 completed May 2, 2026, 11:40 p.m.
Created at: April 29, 2026, 8:36 p.m.