Triple
T1941950
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Metro L Line (Los Angeles) |
E41573
|
entity |
| Predicate | hasOwner |
P347
|
FINISHED |
| Object | LACMTA |
E2263
|
NE FINISHED |
How this triple was built (2 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: LACMTA | Statement: [Metro L Line (Los Angeles), hasOwner, LACMTA]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: LACMTA Context triple: [Metro L Line (Los Angeles), hasOwner, LACMTA]
-
A.
Los Angeles County Metropolitan Transportation Authority
chosen
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.
-
B.
Los Angeles Department of Transportation
The Los Angeles Department of Transportation is the city agency responsible for managing and regulating transportation systems, traffic operations, and mobility services within Los Angeles.
-
C.
Los Angeles Metro Rail
Los Angeles Metro Rail is a rapid transit system serving Los Angeles County, California, consisting of multiple light rail and subway lines that connect key neighborhoods, business districts, and regional destinations.
-
D.
Long Beach Transit
Long Beach Transit is a public transportation agency serving the city of Long Beach and surrounding communities in Southern California with bus and related transit services.
-
E.
Foothill Transit
Foothill Transit is a public bus transit agency serving communities in the San Gabriel and Pomona Valleys of Los Angeles County, California.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69a88649b24c819080047f26b6db2ded |
completed | March 4, 2026, 7:21 p.m. |
| NER | Named-entity recognition | batch_69abb2fc98e881909a539c0ebf842d8b |
completed | March 7, 2026, 5:09 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ae6ae4225081909ea0e59a5885cfc3 |
completed | March 9, 2026, 6:38 a.m. |
Created at: March 4, 2026, 7:36 p.m.