Triple
T7509116
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Union Station (Denver) |
E177469
|
entity |
| Predicate | railServices |
P34369
|
FINISHED |
| Object |
RTD light rail
RTD light rail is a regional light rail transit system serving the Denver metropolitan area in Colorado, operated by the Regional Transportation District.
|
E670215
|
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: RTD light rail | Statement: [Union Station (Denver), railServices, RTD light rail]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: RTD light rail Context triple: [Union Station (Denver), railServices, RTD light rail]
-
A.
DART Light Rail
DART Light Rail is a light rail transit system serving the Dallas–Fort Worth metropolitan area, operated by Dallas Area Rapid Transit.
-
B.
MAX Light Rail
MAX Light Rail is the metropolitan light rail transit system serving the Portland, Oregon, metropolitan area.
-
C.
SacRT Light Rail
SacRT Light Rail is the electric light rail transit system serving Sacramento, California and its surrounding communities.
-
D.
SPRINTER light rail
SPRINTER light rail is a diesel multiple-unit light rail service in northern San Diego County, California, connecting Oceanside with inland cities such as Vista, San Marcos, and Escondido.
-
E.
METRO light rail
METRO light rail is a rapid transit system serving the Minneapolis–Saint Paul metropolitan area with multiple color-designated lines connecting key urban, suburban, and airport destinations.
- 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: RTD light rail Triple: [Union Station (Denver), railServices, RTD light rail]
Generated description
RTD light rail is a regional light rail transit system serving the Denver metropolitan area in Colorado, operated by the Regional Transportation District.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: RTD light rail Target entity description: RTD light rail is a regional light rail transit system serving the Denver metropolitan area in Colorado, operated by the Regional Transportation District.
-
A.
DART Light Rail
DART Light Rail is a light rail transit system serving the Dallas–Fort Worth metropolitan area, operated by Dallas Area Rapid Transit.
-
B.
MAX Light Rail
MAX Light Rail is the metropolitan light rail transit system serving the Portland, Oregon, metropolitan area.
-
C.
SacRT Light Rail
SacRT Light Rail is the electric light rail transit system serving Sacramento, California and its surrounding communities.
-
D.
SPRINTER light rail
SPRINTER light rail is a diesel multiple-unit light rail service in northern San Diego County, California, connecting Oceanside with inland cities such as Vista, San Marcos, and Escondido.
-
E.
METRO light rail
METRO light rail is a rapid transit system serving the Minneapolis–Saint Paul metropolitan area with multiple color-designated lines connecting key urban, suburban, and airport destinations.
- 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_69c69f276b108190af2cc790b6554544 |
completed | March 27, 2026, 3:15 p.m. |
| NER | Named-entity recognition | batch_69c6f5d052888190ae8678f9134d737c |
completed | March 27, 2026, 9:25 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c8461035b48190ba08c0f759cafe4a |
completed | March 28, 2026, 9:20 p.m. |
| NEDg | Description generation | batch_69c84754ec048190be1e37c2189b56ed |
completed | March 28, 2026, 9:25 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69c848026e90819098d0b419101f91e1 |
completed | March 28, 2026, 9:28 p.m. |
Created at: March 27, 2026, 3:45 p.m.