Triple

T15352364
Position Surface form Disambiguated ID Type / Status
Subject Los Angeles River Viaducts E367084 entity
Predicate include P1393 FINISHED
Object First Street Viaduct
The First Street Viaduct is a historic bridge in Los Angeles that carries First Street over the Los Angeles River, serving as a key link between downtown and Boyle Heights.
E1152433 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: First Street Viaduct | Statement: [Los Angeles River Viaducts, include, First Street Viaduct]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: First Street Viaduct
Context triple: [Los Angeles River Viaducts, include, First Street Viaduct]
  • A. Sixth Street Viaduct
    The Sixth Street Viaduct is an iconic Los Angeles bridge known for spanning the downtown area and connecting the Arts District with Boyle Heights.
  • B. Alaskan Way Viaduct
    The Alaskan Way Viaduct was an elevated highway along Seattle’s waterfront that carried a section of State Route 99 before being demolished due to seismic vulnerability and replaced by a tunnel.
  • C. Jefferson Boulevard Viaduct
    Jefferson Boulevard Viaduct is a historic roadway bridge in Dallas, Texas, that carries traffic across the Trinity River and has long served as a key transportation link for the city.
  • D. Jefferson Street Viaduct
    Jefferson Street Viaduct is a historic bridge in Ottumwa, Iowa, that carries Jefferson Street across the Des Moines River and nearby rail lines.
  • E. Park Avenue Viaduct
    The Park Avenue Viaduct is an elevated roadway in Midtown Manhattan that carries traffic around Grand Central Terminal, connecting Park Avenue across 42nd Street.
  • 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: First Street Viaduct
Triple: [Los Angeles River Viaducts, include, First Street Viaduct]
Generated description
The First Street Viaduct is a historic bridge in Los Angeles that carries First Street over the Los Angeles River, serving as a key link between downtown and Boyle Heights.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: First Street Viaduct
Target entity description: The First Street Viaduct is a historic bridge in Los Angeles that carries First Street over the Los Angeles River, serving as a key link between downtown and Boyle Heights.
  • A. Sixth Street Viaduct
    The Sixth Street Viaduct is an iconic Los Angeles bridge known for spanning the downtown area and connecting the Arts District with Boyle Heights.
  • B. Alaskan Way Viaduct
    The Alaskan Way Viaduct was an elevated highway along Seattle’s waterfront that carried a section of State Route 99 before being demolished due to seismic vulnerability and replaced by a tunnel.
  • C. Jefferson Boulevard Viaduct
    Jefferson Boulevard Viaduct is a historic roadway bridge in Dallas, Texas, that carries traffic across the Trinity River and has long served as a key transportation link for the city.
  • D. Jefferson Street Viaduct
    Jefferson Street Viaduct is a historic bridge in Ottumwa, Iowa, that carries Jefferson Street across the Des Moines River and nearby rail lines.
  • E. Park Avenue Viaduct
    The Park Avenue Viaduct is an elevated roadway in Midtown Manhattan that carries traffic around Grand Central Terminal, connecting Park Avenue across 42nd Street.
  • 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_69d85a1355608190a6673ddb67231d54 completed April 10, 2026, 2:01 a.m.
NER Named-entity recognition batch_69e03e290efc8190b22c95dcd3e5f57f completed April 16, 2026, 1:40 a.m.
NED1 Entity disambiguation (via context triple) batch_69ff0b43bfcc8190b1b373ee10786f1e completed May 9, 2026, 10:24 a.m.
NEDg Description generation batch_69ff0bd62b308190b835ec76aba4b8cc completed May 9, 2026, 10:26 a.m.
NED2 Entity disambiguation (via description) batch_69ff0c3e7b848190942cfa9d4b7bbd4c completed May 9, 2026, 10:28 a.m.
Created at: April 10, 2026, 3:17 a.m.