Triple
T4513381
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tirupati railway station |
E102100
|
entity |
| Predicate | operatedBy |
P86
|
FINISHED |
| Object |
South Coast Railway zone
The South Coast Railway zone is a division of Indian Railways responsible for managing and operating rail services across parts of the southeastern coastal region of India.
|
E448554
|
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: South Coast Railway zone | Statement: [Tirupati railway station, operatedBy, South Coast Railway zone]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: South Coast Railway zone Context triple: [Tirupati railway station, operatedBy, South Coast Railway zone]
-
A.
South Western Railway zone
South Western Railway zone is a major railway administrative division of Indian Railways responsible for managing and operating train services and infrastructure primarily across the state of Karnataka and parts of neighboring regions.
-
B.
South Eastern Railway zone
The South Eastern Railway zone is one of the 19 railway zones of Indian Railways, headquartered in Garden Reach, Kolkata, and serving parts of West Bengal, Jharkhand, and Odisha.
-
C.
Southern Railway zone
The Southern Railway zone is one of the major zones of Indian Railways, overseeing extensive rail operations across southern India including key hubs like Tiruchirappalli.
-
D.
Western Railway zone
The Western Railway zone is one of the major zones of Indian Railways, overseeing rail operations across parts of western India including the states of Gujarat, Maharashtra, and Madhya Pradesh.
-
E.
Central Railway zone
Central Railway zone is one of the major zones of Indian Railways, headquartered in Mumbai, overseeing key rail operations across Maharashtra and neighboring regions.
- 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: South Coast Railway zone Triple: [Tirupati railway station, operatedBy, South Coast Railway zone]
Generated description
The South Coast Railway zone is a division of Indian Railways responsible for managing and operating rail services across parts of the southeastern coastal region of India.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: South Coast Railway zone Target entity description: The South Coast Railway zone is a division of Indian Railways responsible for managing and operating rail services across parts of the southeastern coastal region of India.
-
A.
South Western Railway zone
South Western Railway zone is a major railway administrative division of Indian Railways responsible for managing and operating train services and infrastructure primarily across the state of Karnataka and parts of neighboring regions.
-
B.
South Eastern Railway zone
The South Eastern Railway zone is one of the 19 railway zones of Indian Railways, headquartered in Garden Reach, Kolkata, and serving parts of West Bengal, Jharkhand, and Odisha.
-
C.
Southern Railway zone
The Southern Railway zone is one of the major zones of Indian Railways, overseeing extensive rail operations across southern India including key hubs like Tiruchirappalli.
-
D.
Western Railway zone
The Western Railway zone is one of the major zones of Indian Railways, overseeing rail operations across parts of western India including the states of Gujarat, Maharashtra, and Madhya Pradesh.
-
E.
Central Railway zone
Central Railway zone is one of the major zones of Indian Railways, headquartered in Mumbai, overseeing key rail operations across Maharashtra and neighboring regions.
- 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_69bd43d6251c81909deecce3e6e9d69c |
completed | March 20, 2026, 12:55 p.m. |
| NER | Named-entity recognition | batch_69bd5722d8fc81909c5f2d9a38d17a6b |
completed | March 20, 2026, 2:18 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69bd7f8b19ac819099e9249d31660f52 |
completed | March 20, 2026, 5:10 p.m. |
| NEDg | Description generation | batch_69bd84bc88548190a856ddd108ef1495 |
completed | March 20, 2026, 5:32 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69bd854bb4408190b97fd3b7fbf4fcaf |
completed | March 20, 2026, 5:35 p.m. |
Created at: March 20, 2026, 1:02 p.m.