Triple

T589752
Position Surface form Disambiguated ID Type / Status
Subject Central Subway E17240 entity
Predicate hasTerminus P388 FINISHED
Object Chinatown–Rose Pak station
Chinatown–Rose Pak station is an underground Muni Metro light rail station in San Francisco’s Chinatown neighborhood, serving as the northern terminus of the Central Subway line.
 E74329 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: Chinatown–Rose Pak station | Statement: [Central Subway, hasTerminus, Chinatown–Rose Pak station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Chinatown–Rose Pak station
Context triple: [Central Subway, hasTerminus, Chinatown–Rose Pak station]
  • A. International District/Chinatown Station (Link light rail)
    International District/Chinatown Station is a major Link light rail hub in Seattle’s Chinatown–International District, providing regional transit connections near downtown sports stadiums and other key destinations.
  • B. Convention Center Station
    Convention Center Station is a public transit stop serving the area around the Kay Bailey Hutchison Convention Center in Dallas, Texas.
  • C. Pearl/Arts District station
    Pearl/Arts District station is a Dallas Area Rapid Transit (DART) light rail station serving downtown Dallas and the adjacent Arts District.
  • D. Expo Center station
    Expo Center station is a light rail station in Portland, Oregon, serving as the northern terminus of TriMet’s MAX Yellow Line near the Portland Expo Center.
  • E. Convention Center station
    Convention Center station is a light rail stop in downtown Baltimore, Maryland, serving the Baltimore Light RailLink system near the Baltimore Convention Center.
  • 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: Chinatown–Rose Pak station
Triple: [Central Subway, hasTerminus, Chinatown–Rose Pak station]
Generated description
Chinatown–Rose Pak station is an underground Muni Metro light rail station in San Francisco’s Chinatown neighborhood, serving as the northern terminus of the Central Subway line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Chinatown–Rose Pak station
Target entity description: Chinatown–Rose Pak station is an underground Muni Metro light rail station in San Francisco’s Chinatown neighborhood, serving as the northern terminus of the Central Subway line.
  • A. International District/Chinatown Station (Link light rail)
    International District/Chinatown Station is a major Link light rail hub in Seattle’s Chinatown–International District, providing regional transit connections near downtown sports stadiums and other key destinations.
  • B. Convention Center Station
    Convention Center Station is a public transit stop serving the area around the Kay Bailey Hutchison Convention Center in Dallas, Texas.
  • C. Pearl/Arts District station
    Pearl/Arts District station is a Dallas Area Rapid Transit (DART) light rail station serving downtown Dallas and the adjacent Arts District.
  • D. Expo Center station
    Expo Center station is a light rail station in Portland, Oregon, serving as the northern terminus of TriMet’s MAX Yellow Line near the Portland Expo Center.
  • E. Convention Center station
    Convention Center station is a light rail stop in downtown Baltimore, Maryland, serving the Baltimore Light RailLink system near the Baltimore Convention Center.
  • 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_69a49379d09c8190ac7e00b24e2810b1 completed March 1, 2026, 7:28 p.m.
NER Named-entity recognition batch_69a49bb775fc819085b968f8615dca59 completed March 1, 2026, 8:04 p.m.
NED1 Entity disambiguation (via context triple) batch_69a518c44ef0819088048289ed31246f completed March 2, 2026, 4:57 a.m.
NEDg Description generation batch_69a5194215848190874442451c32a10b completed March 2, 2026, 4:59 a.m.
NED2 Entity disambiguation (via description) batch_69a519d2e46881909d00ff279bd4a13e completed March 2, 2026, 5:02 a.m.
Created at: March 1, 2026, 7:33 p.m.