Triple

T9863161
Position Surface form Disambiguated ID Type / Status
Subject Point Richmond E239765 entity
Predicate hasLandmark P105 FINISHED
Object Point Richmond Railroad Tunnel
The Point Richmond Railroad Tunnel is a historic rail tunnel in Point Richmond, California, that once carried major freight and passenger traffic along the Santa Fe Railway line.
 E826187 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: Point Richmond Railroad Tunnel | Statement: [Point Richmond, hasLandmark, Point Richmond Railroad Tunnel]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Point Richmond Railroad Tunnel
Context triple: [Point Richmond, hasLandmark, Point Richmond Railroad Tunnel]
  • A. Sumner Tunnel
    The Sumner Tunnel is a major vehicular tunnel in Boston that carries traffic under Boston Harbor between East Boston and downtown.
  • B. 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.
  • C. East Branch Tunnel
    East Branch Tunnel is a major underground conduit within New York’s Delaware Aqueduct system that transports drinking water from upstate reservoirs toward New York City.
  • D. Bosley Tunnel
    Bosley Tunnel is a historic narrowboat canal tunnel in Cheshire, England, forming part of the Macclesfield Canal navigation route.
  • E. Summit Tunnel
    Summit Tunnel is a historic railroad tunnel driven through the Sierra Nevada in California, notable for its challenging 19th-century construction as part of the First Transcontinental Railroad.
  • 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: Point Richmond Railroad Tunnel
Triple: [Point Richmond, hasLandmark, Point Richmond Railroad Tunnel]
Generated description
The Point Richmond Railroad Tunnel is a historic rail tunnel in Point Richmond, California, that once carried major freight and passenger traffic along the Santa Fe Railway line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Point Richmond Railroad Tunnel
Target entity description: The Point Richmond Railroad Tunnel is a historic rail tunnel in Point Richmond, California, that once carried major freight and passenger traffic along the Santa Fe Railway line.
  • A. Sumner Tunnel
    The Sumner Tunnel is a major vehicular tunnel in Boston that carries traffic under Boston Harbor between East Boston and downtown.
  • B. 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.
  • C. East Branch Tunnel
    East Branch Tunnel is a major underground conduit within New York’s Delaware Aqueduct system that transports drinking water from upstate reservoirs toward New York City.
  • D. Bosley Tunnel
    Bosley Tunnel is a historic narrowboat canal tunnel in Cheshire, England, forming part of the Macclesfield Canal navigation route.
  • E. Summit Tunnel
    Summit Tunnel is a historic railroad tunnel driven through the Sierra Nevada in California, notable for its challenging 19th-century construction as part of the First Transcontinental Railroad.
  • 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_69ca84e6493081909cf58c8d42ea856b completed March 30, 2026, 2:12 p.m.
NER Named-entity recognition batch_69cdb3b7b81c81909a84f6ced829f394 completed April 2, 2026, 12:09 a.m.
NED1 Entity disambiguation (via context triple) batch_69d1e447d3dc819090268f7d14ba3be4 completed April 5, 2026, 4:25 a.m.
NEDg Description generation batch_69d1e4bdd10881909d03bac4912e8e0a completed April 5, 2026, 4:27 a.m.
NED2 Entity disambiguation (via description) batch_69d1e5358b148190a6e432aac9d02544 completed April 5, 2026, 4:29 a.m.
Created at: March 30, 2026, 8:35 p.m.