Triple
T23430758
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Meerut–Hapur line |
E563321
|
entity |
| Predicate | uses |
P98
|
FINISHED |
| Object | Indian Railways signalling system |
—
|
NE NERFINISHED |
How this triple was built (3 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: Indian Railways signalling system | Statement: [Meerut–Hapur line, uses, Indian Railways signalling system]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Indian Railways signalling system Context triple: [Meerut–Hapur line, uses, Indian Railways signalling system]
-
A.
Kavach train protection system
Kavach train protection system is an indigenous Indian automatic train protection technology designed to prevent collisions and enhance operational safety on the railway network.
-
B.
Indian Railways electric locomotive maintenance network
The Indian Railways electric locomotive maintenance network is a nationwide system of specialized facilities and sheds responsible for the upkeep, repair, and overhauling of the railway’s electric locomotive fleet.
-
C.
New South Wales railway signalling system
The New South Wales railway signalling system is the standardized network of signals, control equipment, and operating rules that governs the safe and efficient movement of trains across the New South Wales rail network.
-
D.
Indian Railway Financial Code
The Indian Railway Financial Code is a comprehensive set of rules and procedures that governs financial management, accounting, and budgeting practices within Indian Railways.
-
E.
Indian Railway Traffic Service
The Indian Railway Traffic Service is a prestigious Group 'A' civil service responsible for managing the transportation, commercial operations, and safety of train services on Indian Railways.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Indian Railways signalling system Target entity description: The Indian Railways signalling system is a nationwide network of signals, interlocking, and train protection technologies that manages and controls the safe, efficient movement of trains across India’s railway network.
-
A.
Kavach train protection system
Kavach train protection system is an indigenous Indian automatic train protection technology designed to prevent collisions and enhance operational safety on the railway network.
-
B.
Indian Railways electric locomotive maintenance network
The Indian Railways electric locomotive maintenance network is a nationwide system of specialized facilities and sheds responsible for the upkeep, repair, and overhauling of the railway’s electric locomotive fleet.
-
C.
New South Wales railway signalling system
The New South Wales railway signalling system is the standardized network of signals, control equipment, and operating rules that governs the safe and efficient movement of trains across the New South Wales rail network.
-
D.
Indian Railway Financial Code
The Indian Railway Financial Code is a comprehensive set of rules and procedures that governs financial management, accounting, and budgeting practices within Indian Railways.
-
E.
Indian Railway Traffic Service
The Indian Railway Traffic Service is a prestigious Group 'A' civil service responsible for managing the transportation, commercial operations, and safety of train services on Indian Railways.
- F. None of above. chosen
Provenance (2 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_69e24553980c8190bb66a2ae0bdab125 |
completed | April 17, 2026, 2:36 p.m. |
| NER | Named-entity recognition | batch_69f1a5d8130881909e4f3455afef1804 |
completed | April 29, 2026, 6:31 a.m. |
Created at: April 17, 2026, 5:48 p.m.