Triple
T19721115
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Green Line (San Diego Trolley) |
E473609
|
entity |
| Predicate | owner |
P347
|
FINISHED |
| Object | San Diego Metropolitan Transit System |
—
|
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: San Diego Metropolitan Transit System | Statement: [Green Line (San Diego Trolley), owner, San Diego Metropolitan Transit System]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: San Diego Metropolitan Transit System Context triple: [Green Line (San Diego Trolley), owner, San Diego Metropolitan Transit System]
-
A.
San Diego Metropolitan Transit System
chosen
The San Diego Metropolitan Transit System is the public transportation agency that operates buses and light rail services throughout the San Diego, California metropolitan area.
-
B.
Santa Barbara Metropolitan Transit District
The Santa Barbara Metropolitan Transit District is the primary public bus agency serving Santa Barbara and surrounding communities in California’s South Coast region.
-
C.
North County Transit District
North County Transit District is a public transportation agency serving northern San Diego County, California, operating commuter rail, light rail, and bus services.
-
D.
Foothill Transit
Foothill Transit is a public bus transit agency serving communities in the San Gabriel and Pomona Valleys of Los Angeles County, California.
-
E.
Riverside Transit Agency
Riverside Transit Agency is a public transportation provider serving Riverside County, California, operating local and regional bus services that connect communities within the county and to neighboring transit systems.
- 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_69d8e516dd048190a0b6c93ea3e71f58 |
completed | April 10, 2026, 11:55 a.m. |
| NER | Named-entity recognition | batch_69e649f483c481908c6b3114bf9c5934 |
completed | April 20, 2026, 3:44 p.m. |
Created at: April 10, 2026, 1:46 p.m.