Triple
T2509543
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Valley Metro |
E52668
|
entity |
| Predicate | formedBy |
P972
|
FINISHED |
| Object |
Regional Public Transportation Authority
The Regional Public Transportation Authority is the governing body that oversees and coordinates public transit services in the Phoenix metropolitan area, operating under the Valley Metro brand.
|
E273037
|
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: Regional Public Transportation Authority | Statement: [Valley Metro, formedBy, Regional Public Transportation Authority]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Regional Public Transportation Authority Context triple: [Valley Metro, formedBy, Regional Public Transportation Authority]
-
A.
Regional Transportation District
The Regional Transportation District is the public transit agency serving the Denver metropolitan area, operating buses, light rail, and commuter rail across much of central Colorado.
-
B.
Metropolitan Transit Authority
The Metropolitan Transit Authority was a former public agency that operated and managed mass transit services in the Boston metropolitan area before being succeeded by the MBTA.
-
C.
Metropolitan Transit System
The Metropolitan Transit System is the primary public transportation agency serving the San Diego region, operating buses, trolleys, and related transit services.
-
D.
Mass Transit Administration
The Mass Transit Administration was the former name of Maryland’s statewide public transportation agency responsible for operating and overseeing transit services.
-
E.
Transit Bureau
The Transit Bureau is the division of the New York City Police Department responsible for policing and ensuring safety within the city’s public transit system, particularly the subway.
- 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: Regional Public Transportation Authority Triple: [Valley Metro, formedBy, Regional Public Transportation Authority]
Generated description
The Regional Public Transportation Authority is the governing body that oversees and coordinates public transit services in the Phoenix metropolitan area, operating under the Valley Metro brand.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Regional Public Transportation Authority Target entity description: The Regional Public Transportation Authority is the governing body that oversees and coordinates public transit services in the Phoenix metropolitan area, operating under the Valley Metro brand.
-
A.
Regional Transportation District
The Regional Transportation District is the public transit agency serving the Denver metropolitan area, operating buses, light rail, and commuter rail across much of central Colorado.
-
B.
Metropolitan Transit Authority
The Metropolitan Transit Authority was a former public agency that operated and managed mass transit services in the Boston metropolitan area before being succeeded by the MBTA.
-
C.
Metropolitan Transit System
The Metropolitan Transit System is the primary public transportation agency serving the San Diego region, operating buses, trolleys, and related transit services.
-
D.
Mass Transit Administration
The Mass Transit Administration was the former name of Maryland’s statewide public transportation agency responsible for operating and overseeing transit services.
-
E.
Transit Bureau
The Transit Bureau is the division of the New York City Police Department responsible for policing and ensuring safety within the city’s public transit system, particularly the subway.
- F. None of above. chosen
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_69ab4958e76481908a235377dd921c9e |
completed | March 6, 2026, 9:38 p.m. |
| NER | Named-entity recognition | batch_69abd1ed94a08190a172a426c2123f36 |
completed | March 7, 2026, 7:21 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69af1faa33148190a3ad6ece7432b81f |
completed | March 9, 2026, 7:29 p.m. |
| NEDg | Description generation | batch_69af20aafd008190ad9fee7c154f8597 |
completed | March 9, 2026, 7:34 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69af2193102c81908f5fe1c899cc1a85 |
completed | March 9, 2026, 7:37 p.m. |
Created at: March 6, 2026, 9:46 p.m.