Triple
T1741418
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Peter Witt streetcar |
E38240
|
entity |
| Predicate | operator |
P179
|
FINISHED |
| Object |
Milan municipal tramway system
The Milan municipal tramway system is the extensive urban tram network serving Milan, Italy, known for its historic rolling stock and central role in the city’s public transportation.
|
E193024
|
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: Milan municipal tramway system | Statement: [Peter Witt streetcar, operator, Milan municipal tramway system]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Milan municipal tramway system Context triple: [Peter Witt streetcar, operator, Milan municipal tramway system]
-
A.
Turin Metro
The Turin Metro is a fully automated, driverless rapid transit system serving the city of Turin, Italy.
-
B.
Sarajevo tram system
The Sarajevo tram system is a historic urban light rail network in Bosnia and Herzegovina’s capital, known as one of the oldest electric tram systems in Europe and a key component of the city’s public transport.
-
C.
Basel tram network
The Basel tram network is an extensive urban and regional tram system serving the Swiss city of Basel and its surrounding cross-border areas in France and Germany.
-
D.
Sofia Metro
Sofia Metro is the rapid transit system serving Bulgaria’s capital city, providing high-capacity urban rail transport across Sofia and its metropolitan area.
-
E.
Warsaw Tram system
The Warsaw Tram system is an extensive urban light rail network serving Poland’s capital, forming a core component of the city’s public transportation infrastructure.
- 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: Milan municipal tramway system Triple: [Peter Witt streetcar, operator, Milan municipal tramway system]
Generated description
The Milan municipal tramway system is the extensive urban tram network serving Milan, Italy, known for its historic rolling stock and central role in the city’s public transportation.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Milan municipal tramway system Target entity description: The Milan municipal tramway system is the extensive urban tram network serving Milan, Italy, known for its historic rolling stock and central role in the city’s public transportation.
-
A.
Turin Metro
The Turin Metro is a fully automated, driverless rapid transit system serving the city of Turin, Italy.
-
B.
Sarajevo tram system
The Sarajevo tram system is a historic urban light rail network in Bosnia and Herzegovina’s capital, known as one of the oldest electric tram systems in Europe and a key component of the city’s public transport.
-
C.
Basel tram network
The Basel tram network is an extensive urban and regional tram system serving the Swiss city of Basel and its surrounding cross-border areas in France and Germany.
-
D.
Sofia Metro
Sofia Metro is the rapid transit system serving Bulgaria’s capital city, providing high-capacity urban rail transport across Sofia and its metropolitan area.
-
E.
Warsaw Tram system
The Warsaw Tram system is an extensive urban light rail network serving Poland’s capital, forming a core component of the city’s public transportation infrastructure.
- 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_69a8862b01a48190ab47209063af82d9 |
completed | March 4, 2026, 7:21 p.m. |
| NER | Named-entity recognition | batch_69aa63c6d21c8190809bedaa798e2b14 |
completed | March 6, 2026, 5:19 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ad8b060d64819096ba0522ccce9145 |
completed | March 8, 2026, 2:43 p.m. |
| NEDg | Description generation | batch_69ad957f64c48190862a701a94098bbf |
completed | March 8, 2026, 3:27 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69ad97b974708190adfffebee41a6fcd |
completed | March 8, 2026, 3:37 p.m. |
Created at: March 4, 2026, 7:30 p.m.