Triple
T15528127
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | AVE high-speed services |
E369134
|
entity |
| Predicate | safetySystem |
P840
|
FINISHED |
| Object |
ERTMS
ERTMS is a standardized European train control and signaling system designed to enhance cross-border interoperability, safety, and efficiency on railway networks.
|
E222798
|
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: ERTMS | Statement: [AVE high-speed services, safetySystem, ERTMS]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: ERTMS Context triple: [AVE high-speed services, safetySystem, ERTMS]
-
A.
European Train Control System
The European Train Control System (ETCS) is a standardized, interoperable train signaling and control system used across Europe and in high-speed railways worldwide to enhance safety and efficiency.
-
B.
ETCS Level 3
ETCS Level 3 is an advanced, moving-block train control standard that enables continuous train integrity supervision and higher line capacity within the European Train Control System.
-
C.
Siemens Trainguard MT
Siemens Trainguard MT is a communications-based train control (CBTC) signaling system developed by Siemens for fully automated and driverless metro and urban rail operations.
-
D.
ETCS Level 2
ETCS Level 2 is an advanced European train control and signalling standard that enables continuous, cab-based train supervision and high-speed, high-capacity railway operations.
-
E.
CTCS-2
CTCS-2 is a train control system level within the Chinese Train Control System hierarchy, providing a standardized, lower-tier signaling and control capability compared to CTCS-3.
- 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: ERTMS Triple: [AVE high-speed services, safetySystem, ERTMS]
Generated description
ERTMS is a standardized European train control and signaling system designed to enhance cross-border interoperability, safety, and efficiency on railway networks.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: ERTMS Target entity description: ERTMS is a standardized European train control and signaling system designed to enhance cross-border interoperability, safety, and efficiency on railway networks.
-
A.
European Train Control System
chosen
The European Train Control System (ETCS) is a standardized, interoperable train signaling and control system used across Europe and in high-speed railways worldwide to enhance safety and efficiency.
-
B.
ETCS Level 3
ETCS Level 3 is an advanced, moving-block train control standard that enables continuous train integrity supervision and higher line capacity within the European Train Control System.
-
C.
Siemens Trainguard MT
Siemens Trainguard MT is a communications-based train control (CBTC) signaling system developed by Siemens for fully automated and driverless metro and urban rail operations.
-
D.
ETCS Level 2
ETCS Level 2 is an advanced European train control and signalling standard that enables continuous, cab-based train supervision and high-speed, high-capacity railway operations.
-
E.
CTCS-2
CTCS-2 is a train control system level within the Chinese Train Control System hierarchy, providing a standardized, lower-tier signaling and control capability compared to CTCS-3.
- 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_69d85a1794cc8190b0b428716296e63e |
completed | April 10, 2026, 2:01 a.m. |
| NER | Named-entity recognition | batch_69e0414620588190958ffde651ccab5f |
completed | April 16, 2026, 1:54 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ff3d598e6c8190870e9249197f5f53 |
completed | May 9, 2026, 1:57 p.m. |
| NEDg | Description generation | batch_69ff3de663848190936a5b1d31d18c75 |
completed | May 9, 2026, 2 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69ff3e8c5f308190a335dbc45f9d88ee |
completed | May 9, 2026, 2:02 p.m. |
Created at: April 10, 2026, 4:05 a.m.