Triple
T29803
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Hollywood/Highland station |
E595
|
entity |
| Predicate | ownedBy |
P347
|
FINISHED |
| Object |
Los Angeles County Metropolitan Transportation Authority
The Los Angeles County Metropolitan Transportation Authority is the primary public transit agency for Los Angeles County, operating and overseeing the region’s bus and rail systems.
|
E2263
|
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: Los Angeles County Metropolitan Transportation Authority | Statement: [Hollywood/Highland station, ownedBy, Los Angeles County Metropolitan Transportation Authority]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Los Angeles County Metropolitan Transportation Authority Context triple: [Hollywood/Highland station, ownedBy, Los Angeles County Metropolitan Transportation Authority]
-
A.
Chicago Transit Authority
The Chicago Transit Authority is the primary public transportation agency serving Chicago and several surrounding suburbs, operating the city’s extensive network of buses and rapid transit trains.
-
B.
Union Station Redevelopment Corporation
Union Station Redevelopment Corporation is a nonprofit organization responsible for managing, preserving, and overseeing the redevelopment of Washington, D.C.’s historic Union Station.
-
C.
Caltrain
Caltrain is a commuter rail service on the San Francisco Peninsula and in the Santa Clara Valley, connecting San Francisco to San Jose and Gilroy in California.
-
D.
TriMet
TriMet is the regional public transportation agency serving the Portland, Oregon metropolitan area, operating buses, light rail, and commuter rail services.
-
E.
Chicago Surface Lines
Chicago Surface Lines was a privately operated streetcar and bus system that provided most of Chicago’s surface public transportation in the first half of the 20th century.
- 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: Los Angeles County Metropolitan Transportation Authority Triple: [Hollywood/Highland station, ownedBy, Los Angeles County Metropolitan Transportation Authority]
Generated description
The Los Angeles County Metropolitan Transportation Authority is the primary public transit agency for Los Angeles County, operating and overseeing the region’s bus and rail systems.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Los Angeles County Metropolitan Transportation Authority Target entity description: The Los Angeles County Metropolitan Transportation Authority is the primary public transit agency for Los Angeles County, operating and overseeing the region’s bus and rail systems.
-
A.
Chicago Transit Authority
The Chicago Transit Authority is the primary public transportation agency serving Chicago and several surrounding suburbs, operating the city’s extensive network of buses and rapid transit trains.
-
B.
Union Station Redevelopment Corporation
Union Station Redevelopment Corporation is a nonprofit organization responsible for managing, preserving, and overseeing the redevelopment of Washington, D.C.’s historic Union Station.
-
C.
Caltrain
Caltrain is a commuter rail service on the San Francisco Peninsula and in the Santa Clara Valley, connecting San Francisco to San Jose and Gilroy in California.
-
D.
TriMet
TriMet is the regional public transportation agency serving the Portland, Oregon metropolitan area, operating buses, light rail, and commuter rail services.
-
E.
Chicago Surface Lines
Chicago Surface Lines was a privately operated streetcar and bus system that provided most of Chicago’s surface public transportation in the first half of the 20th century.
- 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_69a2479dec388190967ba648663442c9 |
completed | Feb. 28, 2026, 1:40 a.m. |
| NER | Named-entity recognition | batch_69a24876ada48190b366ba8b9320ebb0 |
completed | Feb. 28, 2026, 1:44 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a24e5d121c8190bf7bb88346dcc141 |
completed | Feb. 28, 2026, 2:09 a.m. |
| NEDg | Description generation | batch_69a24edff52081909ec669158900651c |
completed | Feb. 28, 2026, 2:11 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69a24f4a96288190981be6076e919262 |
completed | Feb. 28, 2026, 2:13 a.m. |
Created at: Feb. 28, 2026, 1:44 a.m.