Triple
T535831
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Chennai |
E12324
|
entity |
| Predicate | hasRailwayStation |
P918
|
FINISHED |
| Object |
Chennai Central railway station
Chennai Central railway station is a major historic railway terminus and one of the busiest transport hubs in South India, serving as a key gateway to the city of Chennai and beyond.
|
E67294
|
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: Chennai Central railway station | Statement: [Chennai, hasRailwayStation, Chennai Central railway station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Chennai Central railway station Context triple: [Chennai, hasRailwayStation, Chennai Central railway station]
-
A.
New Delhi Railway Station
New Delhi Railway Station is one of India’s busiest and largest railway hubs, serving as a major gateway to the capital city and a central node in the country’s rail network.
-
B.
Chhatrapati Shivaji Maharaj Terminus
Chhatrapati Shivaji Maharaj Terminus is a historic UNESCO-listed railway station in Mumbai renowned for its grand Victorian Gothic Revival architecture and role as a major transportation hub.
-
C.
Porbandar railway station
Porbandar railway station is a key rail terminus in Gujarat, India, serving the coastal city of Porbandar with regional and long-distance train connections.
-
D.
Chennai International Airport
Chennai International Airport is a major aviation hub in South India, serving as the primary airport for the city of Chennai with extensive domestic and international flight connections.
-
E.
Chennai
Chennai is a major coastal metropolis in southern India, serving as the capital of Tamil Nadu and a key cultural, economic, and automotive hub.
- 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: Chennai Central railway station Triple: [Chennai, hasRailwayStation, Chennai Central railway station]
Generated description
Chennai Central railway station is a major historic railway terminus and one of the busiest transport hubs in South India, serving as a key gateway to the city of Chennai and beyond.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Chennai Central railway station Target entity description: Chennai Central railway station is a major historic railway terminus and one of the busiest transport hubs in South India, serving as a key gateway to the city of Chennai and beyond.
-
A.
New Delhi Railway Station
New Delhi Railway Station is one of India’s busiest and largest railway hubs, serving as a major gateway to the capital city and a central node in the country’s rail network.
-
B.
Chhatrapati Shivaji Maharaj Terminus
Chhatrapati Shivaji Maharaj Terminus is a historic UNESCO-listed railway station in Mumbai renowned for its grand Victorian Gothic Revival architecture and role as a major transportation hub.
-
C.
Porbandar railway station
Porbandar railway station is a key rail terminus in Gujarat, India, serving the coastal city of Porbandar with regional and long-distance train connections.
-
D.
Chennai International Airport
Chennai International Airport is a major aviation hub in South India, serving as the primary airport for the city of Chennai with extensive domestic and international flight connections.
-
E.
Chennai
Chennai is a major coastal metropolis in southern India, serving as the capital of Tamil Nadu and a key cultural, economic, and automotive hub.
- 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_69a4933208e88190891f5debab1b776d |
completed | March 1, 2026, 7:27 p.m. |
| NER | Named-entity recognition | batch_69a496d904408190a2ed16c839017623 |
completed | March 1, 2026, 7:43 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a4c66fa348819081e004fb4350f4ea |
completed | March 1, 2026, 11:06 p.m. |
| NEDg | Description generation | batch_69a4c71594dc819089ac4ae0f8668135 |
completed | March 1, 2026, 11:09 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69a4c776f7308190ab559d4f0efd95de |
completed | March 1, 2026, 11:10 p.m. |
Created at: March 1, 2026, 7:32 p.m.