Triple
T22112813
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Sun Link |
E546458
|
entity |
| Predicate | rollingStock |
P1305
|
FINISHED |
| Object |
United Streetcar 100-series vehicles
The United Streetcar 100-series vehicles are modern, low-floor streetcars built by United Streetcar for use on urban light rail and streetcar systems in the United States.
|
E1520473
|
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: United Streetcar 100-series vehicles | Statement: [Sun Link, rollingStock, United Streetcar 100-series vehicles]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: United Streetcar 100-series vehicles Context triple: [Sun Link, rollingStock, United Streetcar 100-series vehicles]
-
A.
S-Line streetcar
The S-Line streetcar is a modern streetcar route in the Salt Lake City area that connects the Sugar House neighborhood with the regional light rail network as part of the public transit system.
-
B.
M-Line Streetcar
The M-Line Streetcar is a heritage streetcar service in Dallas, Texas, that operates vintage trolleys through the Uptown area and connects to downtown.
-
C.
Type 10 Light Rail Vehicle
The Type 10 Light Rail Vehicle is a next-generation, low-floor streetcar design planned to modernize and expand the MBTA Green Line fleet in Boston.
-
D.
PCC streetcar
The PCC streetcar is a standardized, streamlined electric tram design introduced in the 1930s that became one of the most widely used and influential streetcar types in North America and beyond.
-
E.
Brookville Liberty Modern Streetcar
The Brookville Liberty Modern Streetcar is a low-floor, modern urban streetcar model built by Brookville Equipment Corporation for contemporary city transit systems in North America.
- 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: United Streetcar 100-series vehicles Triple: [Sun Link, rollingStock, United Streetcar 100-series vehicles]
Generated description
The United Streetcar 100-series vehicles are modern, low-floor streetcars built by United Streetcar for use on urban light rail and streetcar systems in the United States.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: United Streetcar 100-series vehicles Target entity description: The United Streetcar 100-series vehicles are modern, low-floor streetcars built by United Streetcar for use on urban light rail and streetcar systems in the United States.
-
A.
S-Line streetcar
The S-Line streetcar is a modern streetcar route in the Salt Lake City area that connects the Sugar House neighborhood with the regional light rail network as part of the public transit system.
-
B.
M-Line Streetcar
The M-Line Streetcar is a heritage streetcar service in Dallas, Texas, that operates vintage trolleys through the Uptown area and connects to downtown.
-
C.
Type 10 Light Rail Vehicle
The Type 10 Light Rail Vehicle is a next-generation, low-floor streetcar design planned to modernize and expand the MBTA Green Line fleet in Boston.
-
D.
PCC streetcar
The PCC streetcar is a standardized, streamlined electric tram design introduced in the 1930s that became one of the most widely used and influential streetcar types in North America and beyond.
-
E.
Brookville Liberty Modern Streetcar
The Brookville Liberty Modern Streetcar is a low-floor, modern urban streetcar model built by Brookville Equipment Corporation for contemporary city transit systems in North America.
- 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_69e11e38b3848190ac3a4fa97d56e65a |
completed | April 16, 2026, 5:36 p.m. |
| NER | Named-entity recognition | batch_69f1294ae7608190901745384a023bab |
completed | April 28, 2026, 9:40 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a0a8f19799c81909e736a0f19071297 |
completed | May 18, 2026, 4:01 a.m. |
| NEDg | Description generation | batch_6a0a9345653c8190b4ae4eaed3082997 |
completed | May 18, 2026, 4:19 a.m. |
| NED2 | Entity disambiguation (via description) | batch_6a0a93bcb82081908e7e6ff841c2cd8c |
completed | May 18, 2026, 4:21 a.m. |
Created at: April 16, 2026, 8:31 p.m.