Triple
T415508
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Phoenix |
E9582
|
entity |
| Predicate | publicTransitAgency |
P3933
|
FINISHED |
| Object |
Valley Metro
Valley Metro is the regional public transportation system serving the Phoenix metropolitan area, operating bus, light rail, and paratransit services.
|
E52668
|
NE FINISHED |
How this triple was built (5 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: Valley Metro | Statement: [Phoenix, publicTransitAgency, Valley Metro]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Valley Metro Context triple: [Phoenix, publicTransitAgency, Valley Metro]
-
A.
PHX Sky Train
PHX Sky Train is an automated people mover system that transports passengers between terminals, parking areas, and the light rail at Phoenix Sky Harbor International Airport.
-
B.
VTA light rail
VTA light rail is a light rail public transit system serving Santa Clara County, including cities such as San Jose, operated by the Santa Clara Valley Transportation Authority.
-
C.
Trinity Metro
Trinity Metro is the public transportation agency that operates bus and rail services, including commuter rail, in the Fort Worth area of the Dallas–Fort Worth metroplex in Texas.
-
D.
Metra
Metra is the commuter rail system serving the Chicago metropolitan area, operating extensive routes that connect the city with its surrounding suburbs.
-
E.
Metrolink
Metrolink is the light rail tram system serving Greater Manchester, England, connecting central Manchester with surrounding towns and key destinations across the metropolitan area.
- 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: Valley Metro Triple: [Phoenix, publicTransitAgency, Valley Metro]
Generated description
Valley Metro is the regional public transportation system serving the Phoenix metropolitan area, operating bus, light rail, and paratransit services.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Valley Metro Target entity description: Valley Metro is the regional public transportation system serving the Phoenix metropolitan area, operating bus, light rail, and paratransit services.
-
A.
PHX Sky Train
PHX Sky Train is an automated people mover system that transports passengers between terminals, parking areas, and the light rail at Phoenix Sky Harbor International Airport.
-
B.
VTA light rail
VTA light rail is a light rail public transit system serving Santa Clara County, including cities such as San Jose, operated by the Santa Clara Valley Transportation Authority.
-
C.
Trinity Metro
Trinity Metro is the public transportation agency that operates bus and rail services, including commuter rail, in the Fort Worth area of the Dallas–Fort Worth metroplex in Texas.
-
D.
Metra
Metra is the commuter rail system serving the Chicago metropolitan area, operating extensive routes that connect the city with its surrounding suburbs.
-
E.
Metrolink
Metrolink is the light rail tram system serving Greater Manchester, England, connecting central Manchester with surrounding towns and key destinations across the metropolitan area.
- F. None of above. chosen
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: publicTransitAgency Context triple: [Phoenix, publicTransitAgency, Valley Metro]
-
A.
publicTransit
Indicates that one entity provides or is connected via shared, scheduled transportation services (such as buses, trains, or subways) that are available for use by the general public.
-
B.
publicAgency
chosen
Indicates that an entity functions as a government-controlled or government-authorized organization that provides public services or carries out public administration.
-
C.
publicTransitStop
Indicates that a location serves as a designated stop or station where public transit vehicles (such as buses, trains, or trams) pick up and drop off passengers.
-
D.
paratransitSystemName
Indicates the name assigned to a specific paratransit transportation system or service.
-
E.
partOfTransitSystem
Indicates that something is a component or segment within a larger transit or transportation system.
- F. None of above.
Provenance (6 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_69a2e80111fc8190961d5b7c6154123f |
completed | Feb. 28, 2026, 1:05 p.m. |
| NER | Named-entity recognition | batch_69a2eebde1d881908fb212bfba9d7c67 |
completed | Feb. 28, 2026, 1:33 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a423a2ddb08190bdee170f843c2a19 |
completed | March 1, 2026, 11:31 a.m. |
| NEDg | Description generation | batch_69a423d8d3ac81909b1d6bef8632a445 |
completed | March 1, 2026, 11:32 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69a42438d2288190b0b9ea0d24b39460 |
completed | March 1, 2026, 11:34 a.m. |
| PD | Predicate disambiguation | batch_69a2edcff4688190809d83d112ff25a5 |
completed | Feb. 28, 2026, 1:29 p.m. |
Created at: Feb. 28, 2026, 1:09 p.m.