Triple

T6696637
Position Surface form Disambiguated ID Type / Status
Subject Sounder South Line E152765 entity
Predicate station P726 FINISHED
Object South Tacoma Station
South Tacoma Station is a commuter rail stop in Tacoma, Washington, served by Sound Transit’s Sounder South Line and providing regional connections between Tacoma and the greater Puget Sound area.
 E616856 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: South Tacoma Station | Statement: [Sounder South Line, station, South Tacoma Station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: South Tacoma Station
Context triple: [Sounder South Line, station, South Tacoma Station]
  • A. Mercer Island Station
    Mercer Island Station is a light rail transit stop serving the city of Mercer Island in the Seattle metropolitan area.
  • B. Tukwila International Boulevard Station
    Tukwila International Boulevard Station is a major Sound Transit Link light rail station in Tukwila, Washington, serving as a key transit hub near Seattle–Tacoma International Airport.
  • C. SeaTac/Airport Station
    SeaTac/Airport Station is a light rail transit station serving Seattle–Tacoma International Airport and the surrounding SeaTac area.
  • D. Tukwila Station
    Tukwila Station is a commuter rail station in Tukwila, Washington, serving Sound Transit’s Sounder trains between Seattle and Tacoma.
  • E. SODO Station
    SODO Station is a light rail station in Seattle’s SoDo (South of Downtown) industrial district, serving commuters and providing access to nearby warehouses, offices, and sports venues.
  • 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: South Tacoma Station
Triple: [Sounder South Line, station, South Tacoma Station]
Generated description
South Tacoma Station is a commuter rail stop in Tacoma, Washington, served by Sound Transit’s Sounder South Line and providing regional connections between Tacoma and the greater Puget Sound area.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: South Tacoma Station
Target entity description: South Tacoma Station is a commuter rail stop in Tacoma, Washington, served by Sound Transit’s Sounder South Line and providing regional connections between Tacoma and the greater Puget Sound area.
  • A. Mercer Island Station
    Mercer Island Station is a light rail transit stop serving the city of Mercer Island in the Seattle metropolitan area.
  • B. Tukwila International Boulevard Station
    Tukwila International Boulevard Station is a major Sound Transit Link light rail station in Tukwila, Washington, serving as a key transit hub near Seattle–Tacoma International Airport.
  • C. SeaTac/Airport Station
    SeaTac/Airport Station is a light rail transit station serving Seattle–Tacoma International Airport and the surrounding SeaTac area.
  • D. Tukwila Station
    Tukwila Station is a commuter rail station in Tukwila, Washington, serving Sound Transit’s Sounder trains between Seattle and Tacoma.
  • E. SODO Station
    SODO Station is a light rail station in Seattle’s SoDo (South of Downtown) industrial district, serving commuters and providing access to nearby warehouses, offices, and sports venues.
  • 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_69c6880687b08190805278b504d1c92c completed March 27, 2026, 1:37 p.m.
NER Named-entity recognition batch_69c6d0a3a2408190bb7be4613f896bdc completed March 27, 2026, 6:46 p.m.
NED1 Entity disambiguation (via context triple) batch_69c70af2ede08190821fd599a3bfc879 completed March 27, 2026, 10:55 p.m.
NEDg Description generation batch_69c70c24440881909c72dca5fd8ca9e3 completed March 27, 2026, 11 p.m.
NED2 Entity disambiguation (via description) batch_69c70cd4bd5081909051a572f0aa7659 completed March 27, 2026, 11:03 p.m.
Created at: March 27, 2026, 2:05 p.m.