Triple

T14986449
Position Surface form Disambiguated ID Type / Status
Subject Santa Susana Pass E373713 entity
Predicate nearbyRailFeature P25143 FINISHED
Object Santa Susana Tunnel
The Santa Susana Tunnel is a historic railroad tunnel in Southern California that carries trains through the Santa Susana Mountains between the San Fernando Valley and Simi Valley.
E1129491 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: Santa Susana Tunnel | Statement: [Santa Susana Pass, nearbyRailFeature, Santa Susana Tunnel]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Santa Susana Tunnel
Context triple: [Santa Susana Pass, nearbyRailFeature, Santa Susana Tunnel]
  • A. San Bernardino Tunnel
    The San Bernardino Tunnel is a major road tunnel in the Swiss Alps that provides a key north–south transit route between German-speaking and Italian-speaking Switzerland.
  • B. Tehachapi Crossing tunnels
    The Tehachapi Crossing tunnels are a series of large water conveyance tunnels that carry California Aqueduct flows beneath the Tehachapi Mountains as part of the State Water Project.
  • C. H-3 freeway tunnels
    The H-3 freeway tunnels are major highway tunnels in Hawaii that bore through the Koʻolau Range on Oʻahu, connecting Honolulu’s windward and leeward sides.
  • D. Sutro Tunnel
    The Sutro Tunnel is a historic drainage and access tunnel driven into Nevada’s Comstock Lode in the 19th century to improve mine safety and operations.
  • E. Santa Susana Pass
    Santa Susana Pass is a historic mountain pass in Southern California that serves as a key transportation corridor between the San Fernando Valley and Simi Valley.
  • 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: Santa Susana Tunnel
Triple: [Santa Susana Pass, nearbyRailFeature, Santa Susana Tunnel]
Generated description
The Santa Susana Tunnel is a historic railroad tunnel in Southern California that carries trains through the Santa Susana Mountains between the San Fernando Valley and Simi Valley.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Santa Susana Tunnel
Target entity description: The Santa Susana Tunnel is a historic railroad tunnel in Southern California that carries trains through the Santa Susana Mountains between the San Fernando Valley and Simi Valley.
  • A. San Bernardino Tunnel
    The San Bernardino Tunnel is a major road tunnel in the Swiss Alps that provides a key north–south transit route between German-speaking and Italian-speaking Switzerland.
  • B. Tehachapi Crossing tunnels
    The Tehachapi Crossing tunnels are a series of large water conveyance tunnels that carry California Aqueduct flows beneath the Tehachapi Mountains as part of the State Water Project.
  • C. H-3 freeway tunnels
    The H-3 freeway tunnels are major highway tunnels in Hawaii that bore through the Koʻolau Range on Oʻahu, connecting Honolulu’s windward and leeward sides.
  • D. Sutro Tunnel
    The Sutro Tunnel is a historic drainage and access tunnel driven into Nevada’s Comstock Lode in the 19th century to improve mine safety and operations.
  • E. Santa Susana Pass
    Santa Susana Pass is a historic mountain pass in Southern California that serves as a key transportation corridor between the San Fernando Valley and Simi Valley.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: nearbyRailFeature
Context triple: [Santa Susana Pass, nearbyRailFeature, Santa Susana Tunnel]
  • A. hasNearbyRailway chosen
    Indicates that one entity is located close to a railway associated with or relevant to another entity.
  • B. nearestRailwayLine
    Indicates that one railway line is the closest in distance to a given location or feature compared to all other railway lines.
  • C. nearestRailwayTerminus
    Indicates that one location is the closest railway terminus to another specified place.
  • D. nearestPassengerRailStation
    Indicates that one entity is the closest passenger rail station in distance to another entity.
  • E. hasNearbyRailwayStation
    Indicates that a railway station is located within a short or convenient distance from the referenced entity.
  • 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_69d85ccc84388190aa151e5173370c8d completed April 10, 2026, 2:13 a.m.
NER Named-entity recognition batch_69ded7007588819095bb1de029a6f2eb completed April 15, 2026, 12:08 a.m.
NED1 Entity disambiguation (via context triple) batch_69fe8c036bfc8190b01bf2128403f557 completed May 9, 2026, 1:21 a.m.
NEDg Description generation batch_69fe8dc977448190a01c55d99d4d9034 completed May 9, 2026, 1:28 a.m.
NED2 Entity disambiguation (via description) batch_69fe8e9e62a4819089b3568d277d5262 completed May 9, 2026, 1:32 a.m.
PD Predicate disambiguation batch_69de9a6169b48190a679609febd2d0e3 completed April 14, 2026, 7:49 p.m.
Created at: April 10, 2026, 2:52 a.m.