Triple
T22262803
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Port Authority light rail |
E550270
|
entity |
| Predicate | partOf |
P40
|
FINISHED |
| Object | public transit network of Pittsburgh |
—
|
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: public transit network of Pittsburgh | Statement: [Port Authority light rail, partOf, public transit network of Pittsburgh]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: public transit network of Pittsburgh Context triple: [Port Authority light rail, partOf, public transit network of Pittsburgh]
-
A.
Pittsburgh street network
The Pittsburgh street network is the complex system of roads and thoroughfares that weaves through Pittsburgh’s hilly terrain and river valleys, connecting its diverse neighborhoods and business districts.
-
B.
Pittsburgh Regional Transit East Busway network
The Pittsburgh Regional Transit East Busway network is a dedicated bus rapid transit corridor in Pittsburgh that provides fast, limited-stop service between the city’s eastern neighborhoods and downtown.
-
C.
Pittsburgh Light Rail subway trunk
The Pittsburgh Light Rail subway trunk is the central underground segment of Pittsburgh’s light rail system that carries trains through the city’s downtown core.
-
D.
Pittsburgh Regional Transit
chosen
Pittsburgh Regional Transit is the primary public transportation agency serving the Pittsburgh metropolitan area, operating buses, light rail, and other transit services across the region.
-
E.
Pittsburgh Light Rail
Pittsburgh Light Rail is a light rail transit system serving Pittsburgh, Pennsylvania and its nearby neighborhoods, providing urban and commuter rail service including access to the city’s North Shore district.
- 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_69e11e42adb8819087714772ea606709 |
completed | April 16, 2026, 5:37 p.m. |
| NER | Named-entity recognition | batch_69f141b94a688190b17c55477993a745 |
completed | April 28, 2026, 11:24 p.m. |
Created at: April 16, 2026, 8:39 p.m.