Triple
T5786571
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tramlink |
E128281
|
entity |
| Predicate | rollingStock |
P1305
|
FINISHED |
| Object |
Bombardier CR4000 trams
Bombardier CR4000 trams are a class of low-floor light rail vehicles built by Bombardier for urban tramway systems, notably used on London’s Tramlink network.
|
E136887
|
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: Bombardier CR4000 trams | Statement: [Tramlink, rollingStock, Bombardier CR4000 trams]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Bombardier CR4000 trams Context triple: [Tramlink, rollingStock, Bombardier CR4000 trams]
-
A.
Bombardier Cityrunner trams
Bombardier Cityrunner trams are a family of low-floor, modern light rail vehicles designed for urban public transport systems in various cities worldwide.
-
B.
Alstom Citadis tram
The Alstom Citadis tram is a family of modern low-floor light rail vehicles widely used in urban tram networks around the world.
-
C.
Stadler Tango trams
Stadler Tango trams are modern, low-floor light rail vehicles built by Stadler Rail, commonly used in European cities for high-capacity, urban public transport services.
-
D.
Alstom Eurotram
The Alstom Eurotram is a distinctive low-floor light rail vehicle known for its sleek, modern design and panoramic windows, widely used on urban tram networks in Europe.
-
E.
Vossloh Citylink tram-train vehicles
Vossloh Citylink tram-train vehicles are modern, dual-mode light rail units designed to operate seamlessly on both urban tram networks and mainline railway tracks.
- 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: Bombardier CR4000 trams Triple: [Tramlink, rollingStock, Bombardier CR4000 trams]
Generated description
Bombardier CR4000 trams are a class of low-floor light rail vehicles built by Bombardier for urban tramway systems, notably used on London’s Tramlink network.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Bombardier CR4000 trams Target entity description: Bombardier CR4000 trams are a class of low-floor light rail vehicles built by Bombardier for urban tramway systems, notably used on London’s Tramlink network.
-
A.
Bombardier Cityrunner trams
chosen
Bombardier Cityrunner trams are a family of low-floor, modern light rail vehicles designed for urban public transport systems in various cities worldwide.
-
B.
Alstom Citadis tram
The Alstom Citadis tram is a family of modern low-floor light rail vehicles widely used in urban tram networks around the world.
-
C.
Stadler Tango trams
Stadler Tango trams are modern, low-floor light rail vehicles built by Stadler Rail, commonly used in European cities for high-capacity, urban public transport services.
-
D.
Alstom Eurotram
The Alstom Eurotram is a distinctive low-floor light rail vehicle known for its sleek, modern design and panoramic windows, widely used on urban tram networks in Europe.
-
E.
Vossloh Citylink tram-train vehicles
Vossloh Citylink tram-train vehicles are modern, dual-mode light rail units designed to operate seamlessly on both urban tram networks and mainline railway tracks.
- F. None of above.
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_69c0084450048190bc647b649a05136b |
completed | March 22, 2026, 3:18 p.m. |
| NER | Named-entity recognition | batch_69c02a1c29d48190af36cc855bb491dd |
completed | March 22, 2026, 5:42 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c0981a002c8190ac8ed7407a80919c |
completed | March 23, 2026, 1:32 a.m. |
| NEDg | Description generation | batch_69c0989f7e58819098175e6eaacdb9ee |
completed | March 23, 2026, 1:34 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c09cf3220481908c52b519e8495fff |
completed | March 23, 2026, 1:52 a.m. |
Created at: March 22, 2026, 3:51 p.m.