Triple
T11735536
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Amtrak Siemens Charger locomotives |
E279015
|
entity |
| Predicate | hasVariant |
P455
|
FINISHED |
| Object |
Siemens ALC-42
The Siemens ALC-42 is a long-distance variant of Amtrak’s Siemens Charger diesel-electric locomotive, designed for higher fuel capacity and extended intercity passenger service across the United States.
|
E943427
|
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: Siemens ALC-42 | Statement: [Amtrak Siemens Charger locomotives, hasVariant, Siemens ALC-42]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Siemens ALC-42 Context triple: [Amtrak Siemens Charger locomotives, hasVariant, Siemens ALC-42]
-
A.
Siemens SD-460
The Siemens SD-460 is a light rail vehicle model built by Siemens for use on systems such as the St. Louis MetroLink.
-
B.
Siemens Avanto
Siemens Avanto is a family of light rail and tram-train vehicles developed by Siemens for urban and regional public transport systems.
-
C.
Siemens SD-400
The Siemens SD-400 is a light rail vehicle model built by Siemens for use on systems such as the St. Louis MetroLink, featuring articulated, electrically powered cars designed for urban transit.
-
D.
Siemens SD-160
The Siemens SD-160 is a high-floor light rail vehicle widely used in North American transit systems, including Calgary’s CTrain, known for its modular design and reliable urban service.
-
E.
Siemens SD100
The Siemens SD100 is a light rail vehicle model built by Siemens for use on urban trolley and light rail systems such as the San Diego Trolley.
- 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: Siemens ALC-42 Triple: [Amtrak Siemens Charger locomotives, hasVariant, Siemens ALC-42]
Generated description
The Siemens ALC-42 is a long-distance variant of Amtrak’s Siemens Charger diesel-electric locomotive, designed for higher fuel capacity and extended intercity passenger service across the United States.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Siemens ALC-42 Target entity description: The Siemens ALC-42 is a long-distance variant of Amtrak’s Siemens Charger diesel-electric locomotive, designed for higher fuel capacity and extended intercity passenger service across the United States.
-
A.
Siemens SD-460
The Siemens SD-460 is a light rail vehicle model built by Siemens for use on systems such as the St. Louis MetroLink.
-
B.
Siemens Avanto
Siemens Avanto is a family of light rail and tram-train vehicles developed by Siemens for urban and regional public transport systems.
-
C.
Siemens SD-400
The Siemens SD-400 is a light rail vehicle model built by Siemens for use on systems such as the St. Louis MetroLink, featuring articulated, electrically powered cars designed for urban transit.
-
D.
Siemens SD-160
The Siemens SD-160 is a high-floor light rail vehicle widely used in North American transit systems, including Calgary’s CTrain, known for its modular design and reliable urban service.
-
E.
Siemens SD100
The Siemens SD100 is a light rail vehicle model built by Siemens for use on urban trolley and light rail systems such as the San Diego Trolley.
- 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_69d6aaffec6881908bead509e8621742 |
completed | April 8, 2026, 7:22 p.m. |
| NER | Named-entity recognition | batch_69d8a4edced48190b7a59dd45921828e |
completed | April 10, 2026, 7:21 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f019b318188190bfb7effcf42974d2 |
completed | April 28, 2026, 2:21 a.m. |
| NEDg | Description generation | batch_69f0319271788190a105828ae7582668 |
completed | April 28, 2026, 4:03 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69f05a44dcb88190a0bb57b0c8fef6b9 |
completed | April 28, 2026, 6:57 a.m. |
Created at: April 8, 2026, 9:41 p.m.