Triple
T17812419
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Metro Silver Line |
E444743
|
entity |
| Predicate | agencyAbbreviation |
P7408
|
FINISHED |
| Object | LACMTA |
—
|
NE NERFINISHED |
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 Silver Line, agencyAbbreviation, LACMTA]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: LACMTA Context triple: [Metro Silver Line, agencyAbbreviation, 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.
Alameda Corridor Transportation Authority
The Alameda Corridor Transportation Authority is a public agency that developed and manages the Alameda Corridor freight rail expressway linking the Ports of Los Angeles and Long Beach to the national rail network.
-
D.
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.
-
E.
Beach Cities Transit
Beach Cities Transit is a local public bus service operating in the South Bay region of Los Angeles County, primarily serving the coastal “beach cities” communities.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69d8b9f0de78819099395b14db75a8a6 |
completed | April 10, 2026, 8:50 a.m. |
| NER | Named-entity recognition | batch_69e4887c63608190b29a407cabff0bc5 |
completed | April 19, 2026, 7:47 a.m. |
Created at: April 10, 2026, 10:14 a.m.