Triple
T10416064
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Pittsburgh Regional Transit |
E245518
|
entity |
| Predicate | governingBody |
P46
|
FINISHED |
| Object |
Board of Directors of Pittsburgh Regional Transit
The Board of Directors of Pittsburgh Regional Transit is the policy-making and oversight body that directs the strategy, finances, and operations of the public transit agency serving the Pittsburgh metropolitan area.
|
E245518
|
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: Board of Directors of Pittsburgh Regional Transit | Statement: [Pittsburgh Regional Transit, governingBody, Board of Directors of Pittsburgh Regional Transit]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Board of Directors of Pittsburgh Regional Transit Context triple: [Pittsburgh Regional Transit, governingBody, Board of Directors of Pittsburgh Regional Transit]
-
A.
Board of Trustees of Greater Cleveland Regional Transit Authority
The Board of Trustees of the Greater Cleveland Regional Transit Authority is the governing body responsible for overseeing policy, budgeting, and strategic direction for Cleveland’s public transit system, including its rail operations.
-
B.
Board of Directors of the San Mateo County Transit District
The Board of Directors of the San Mateo County Transit District is the policy-making and oversight body that directs and supervises the operations, budget, and strategic planning of SamTrans public transportation services in San Mateo County, California.
-
C.
Board of Directors of NJ Transit
The Board of Directors of NJ Transit is the governing body that oversees policy, strategic direction, and fiscal and operational decisions for New Jersey’s statewide public transportation agency.
-
D.
Board of Directors of Long Beach Transit
The Board of Directors of Long Beach Transit is the policy-making and oversight body responsible for guiding the strategic direction and management of the public transit agency serving Long Beach, California.
-
E.
Pittsburgh Regional Transit
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.
- 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: Board of Directors of Pittsburgh Regional Transit Triple: [Pittsburgh Regional Transit, governingBody, Board of Directors of Pittsburgh Regional Transit]
Generated description
The Board of Directors of Pittsburgh Regional Transit is the policy-making and oversight body that directs the strategy, finances, and operations of the public transit agency serving the Pittsburgh metropolitan area.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Board of Directors of Pittsburgh Regional Transit Target entity description: The Board of Directors of Pittsburgh Regional Transit is the policy-making and oversight body that directs the strategy, finances, and operations of the public transit agency serving the Pittsburgh metropolitan area.
-
A.
Board of Trustees of Greater Cleveland Regional Transit Authority
The Board of Trustees of the Greater Cleveland Regional Transit Authority is the governing body responsible for overseeing policy, budgeting, and strategic direction for Cleveland’s public transit system, including its rail operations.
-
B.
Board of Directors of the San Mateo County Transit District
The Board of Directors of the San Mateo County Transit District is the policy-making and oversight body that directs and supervises the operations, budget, and strategic planning of SamTrans public transportation services in San Mateo County, California.
-
C.
Board of Directors of NJ Transit
The Board of Directors of NJ Transit is the governing body that oversees policy, strategic direction, and fiscal and operational decisions for New Jersey’s statewide public transportation agency.
-
D.
Board of Directors of Long Beach Transit
The Board of Directors of Long Beach Transit is the policy-making and oversight body responsible for guiding the strategic direction and management of the public transit agency serving Long Beach, California.
-
E.
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.
- F. None of above.
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_69d381be340c8190b05998703d42d224 |
completed | April 6, 2026, 9:49 a.m. |
| NER | Named-entity recognition | batch_69d4ea108fec8190819423630888fa2b |
completed | April 7, 2026, 11:27 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d7fc0dd480819082edcc49a245ad4f |
completed | April 9, 2026, 7:20 p.m. |
| NEDg | Description generation | batch_69d822d6a0188190a7ee6de5aab50486 |
completed | April 9, 2026, 10:06 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69d859e40bf88190a6dc8deed3049d31 |
completed | April 10, 2026, 2:01 a.m. |
Created at: April 6, 2026, 12:10 p.m.