Triple
T15320003
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | historic centre of Milan |
E366261
|
entity |
| Predicate | contains |
P35
|
FINISHED |
| Object |
Duomo Metro station
Duomo Metro station is a major underground transit hub in central Milan, located beneath the city’s iconic cathedral square and serving as a key interchange on the Milan Metro network.
|
E1150455
|
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: Duomo Metro station | Statement: [historic centre of Milan, contains, Duomo Metro station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Duomo Metro station Context triple: [historic centre of Milan, contains, Duomo Metro station]
-
A.
Policlinico metro station
Policlinico metro station is an underground station on Rome’s Metro Line B serving the area around the Sapienza University and the Città Universitaria district.
-
B.
Porta Nuova metro station
Porta Nuova metro station is a major Turin Metro stop integrated with the city’s main Porta Nuova railway station, serving as a key hub for urban and regional transit.
-
C.
Flaminio metro station
Flaminio metro station is an underground station on Rome’s Metro Line A, serving the central Piazza del Popolo area and connecting it to the wider city network.
-
D.
Rossio metro station
Rossio metro station is a central Lisbon underground station on the Green Line, serving the historic downtown area near Rossio Square and Praça da Figueira.
-
E.
Catedral station
Catedral station is a central Buenos Aires Underground stop located in the city's downtown area, serving as a key access point to major civic and historic sites.
- 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: Duomo Metro station Triple: [historic centre of Milan, contains, Duomo Metro station]
Generated description
Duomo Metro station is a major underground transit hub in central Milan, located beneath the city’s iconic cathedral square and serving as a key interchange on the Milan Metro network.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Duomo Metro station Target entity description: Duomo Metro station is a major underground transit hub in central Milan, located beneath the city’s iconic cathedral square and serving as a key interchange on the Milan Metro network.
-
A.
Policlinico metro station
Policlinico metro station is an underground station on Rome’s Metro Line B serving the area around the Sapienza University and the Città Universitaria district.
-
B.
Porta Nuova metro station
Porta Nuova metro station is a major Turin Metro stop integrated with the city’s main Porta Nuova railway station, serving as a key hub for urban and regional transit.
-
C.
Flaminio metro station
Flaminio metro station is an underground station on Rome’s Metro Line A, serving the central Piazza del Popolo area and connecting it to the wider city network.
-
D.
Rossio metro station
Rossio metro station is a central Lisbon underground station on the Green Line, serving the historic downtown area near Rossio Square and Praça da Figueira.
-
E.
Catedral station
Catedral station is a central Buenos Aires Underground stop located in the city's downtown area, serving as a key access point to major civic and historic sites.
- 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_69d85a121520819093dcce999fdefe1a |
completed | April 10, 2026, 2:01 a.m. |
| NER | Named-entity recognition | batch_69e03dd356b881908f054b64eee6a371 |
completed | April 16, 2026, 1:39 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fef8a9085881909904152c32b0fed1 |
completed | May 9, 2026, 9:04 a.m. |
| NEDg | Description generation | batch_69fefc8251d08190bf8a764f83f89d7e |
completed | May 9, 2026, 9:21 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69fefd6c2bf88190b17a03be7b3353e3 |
completed | May 9, 2026, 9:25 a.m. |
Created at: April 10, 2026, 3:16 a.m.