Triple
T2893872
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Urbanos do Porto |
E63891
|
entity |
| Predicate | usesRollingStock |
P5426
|
FINISHED |
| Object |
CP Class 3400 EMU
The CP Class 3400 EMU is a series of electric multiple-unit trains operated by Comboios de Portugal, primarily used for suburban and commuter rail services.
|
E308150
|
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: CP Class 3400 EMU | Statement: [Urbanos do Porto, usesRollingStock, CP Class 3400 EMU]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: CP Class 3400 EMU Context triple: [Urbanos do Porto, usesRollingStock, CP Class 3400 EMU]
-
A.
Class 745 EMU
The Class 745 EMU is a modern electric multiple unit train used on regional and intercity services in the UK, built for high-capacity, high-comfort passenger operations.
-
B.
Class 720 EMU
The Class 720 EMU is a modern British electric multiple unit train built for high-capacity commuter and regional services, primarily operated in East Anglia.
-
C.
Class 397 Civity EMU
The Class 397 Civity EMU is a modern high-speed electric multiple unit built by CAF for intercity services in the UK, notably on routes linking north of England cities with Scotland.
-
D.
JR West 321 series EMU
The JR West 321 series EMU is a Japanese commuter electric multiple unit train operated by West Japan Railway Company, primarily used for high-frequency urban and suburban services in the Kansai region.
-
E.
JR West 223 series EMU
The JR West 223 series EMU is a Japanese electric multiple unit train used for high-frequency suburban and rapid services in the Kansai region.
- 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: CP Class 3400 EMU Triple: [Urbanos do Porto, usesRollingStock, CP Class 3400 EMU]
Generated description
The CP Class 3400 EMU is a series of electric multiple-unit trains operated by Comboios de Portugal, primarily used for suburban and commuter rail services.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: CP Class 3400 EMU Target entity description: The CP Class 3400 EMU is a series of electric multiple-unit trains operated by Comboios de Portugal, primarily used for suburban and commuter rail services.
-
A.
Class 745 EMU
The Class 745 EMU is a modern electric multiple unit train used on regional and intercity services in the UK, built for high-capacity, high-comfort passenger operations.
-
B.
Class 720 EMU
The Class 720 EMU is a modern British electric multiple unit train built for high-capacity commuter and regional services, primarily operated in East Anglia.
-
C.
Class 397 Civity EMU
The Class 397 Civity EMU is a modern high-speed electric multiple unit built by CAF for intercity services in the UK, notably on routes linking north of England cities with Scotland.
-
D.
JR West 321 series EMU
The JR West 321 series EMU is a Japanese commuter electric multiple unit train operated by West Japan Railway Company, primarily used for high-frequency urban and suburban services in the Kansai region.
-
E.
JR West 223 series EMU
The JR West 223 series EMU is a Japanese electric multiple unit train used for high-frequency suburban and rapid services in the Kansai region.
- 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_69ab4c45822c8190830c5f2bb97bcfd0 |
completed | March 6, 2026, 9:51 p.m. |
| NER | Named-entity recognition | batch_69abe063de6c8190bce9ddefd1dd62e1 |
completed | March 7, 2026, 8:23 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b031814764819096a1664b468ec817 |
completed | March 10, 2026, 2:58 p.m. |
| NEDg | Description generation | batch_69b03206ad288190aaa97a9379f3438c |
completed | March 10, 2026, 3 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69b0398b955c81909c6155706f4b90e9 |
completed | March 10, 2026, 3:32 p.m. |
Created at: March 6, 2026, 10:07 p.m.