Triple
T7124002
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tiruchirappalli Junction railway station |
E166013
|
entity |
| Predicate | hasLine |
P35
|
FINISHED |
| Object |
Tiruchirappalli–Dindigul line
The Tiruchirappalli–Dindigul line is a key broad-gauge railway route in Tamil Nadu, India, connecting the major cities of Tiruchirappalli and Dindigul and serving as an important link in the Southern Railway network.
|
E650319
|
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: Tiruchirappalli–Dindigul line | Statement: [Tiruchirappalli Junction railway station, hasLine, Tiruchirappalli–Dindigul line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tiruchirappalli–Dindigul line Context triple: [Tiruchirappalli Junction railway station, hasLine, Tiruchirappalli–Dindigul line]
-
A.
Tiruchirappalli–Madurai line
The Tiruchirappalli–Madurai line is a key railway route in the Indian state of Tamil Nadu that connects the major cities of Tiruchirappalli and Madurai, serving as an important corridor for both passenger and freight traffic.
-
B.
Tiruchirappalli–Karur line
The Tiruchirappalli–Karur line is a railway route in the Indian state of Tamil Nadu that connects the city of Tiruchirappalli with Karur, serving as an important regional link for passenger and freight traffic.
-
C.
Tiruchirappalli–Thanjavur line
The Tiruchirappalli–Thanjavur line is a key railway route in Tamil Nadu, India, connecting the major cities of Tiruchirappalli and Thanjavur and serving as an important corridor for regional passenger and freight traffic.
-
D.
Chennai–Tiruchirappalli line
The Chennai–Tiruchirappalli line is a major electrified broad-gauge railway corridor in Tamil Nadu, India, connecting the state capital Chennai with the important inland city of Tiruchirappalli and forming part of the busy Southern Railway network.
-
E.
Rameswaram–Mandapam rail line
The Rameswaram–Mandapam rail line is a coastal railway route in Tamil Nadu, India, that connects the mainland to Rameswaram Island and includes the historic Pamban Bridge over the Palk Strait.
- 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: Tiruchirappalli–Dindigul line Triple: [Tiruchirappalli Junction railway station, hasLine, Tiruchirappalli–Dindigul line]
Generated description
The Tiruchirappalli–Dindigul line is a key broad-gauge railway route in Tamil Nadu, India, connecting the major cities of Tiruchirappalli and Dindigul and serving as an important link in the Southern Railway network.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Tiruchirappalli–Dindigul line Target entity description: The Tiruchirappalli–Dindigul line is a key broad-gauge railway route in Tamil Nadu, India, connecting the major cities of Tiruchirappalli and Dindigul and serving as an important link in the Southern Railway network.
-
A.
Tiruchirappalli–Madurai line
The Tiruchirappalli–Madurai line is a key railway route in the Indian state of Tamil Nadu that connects the major cities of Tiruchirappalli and Madurai, serving as an important corridor for both passenger and freight traffic.
-
B.
Tiruchirappalli–Karur line
The Tiruchirappalli–Karur line is a railway route in the Indian state of Tamil Nadu that connects the city of Tiruchirappalli with Karur, serving as an important regional link for passenger and freight traffic.
-
C.
Tiruchirappalli–Thanjavur line
The Tiruchirappalli–Thanjavur line is a key railway route in Tamil Nadu, India, connecting the major cities of Tiruchirappalli and Thanjavur and serving as an important corridor for regional passenger and freight traffic.
-
D.
Chennai–Tiruchirappalli line
The Chennai–Tiruchirappalli line is a major electrified broad-gauge railway corridor in Tamil Nadu, India, connecting the state capital Chennai with the important inland city of Tiruchirappalli and forming part of the busy Southern Railway network.
-
E.
Rameswaram–Mandapam rail line
The Rameswaram–Mandapam rail line is a coastal railway route in Tamil Nadu, India, that connects the mainland to Rameswaram Island and includes the historic Pamban Bridge over the Palk Strait.
- 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_69c6888350588190870cd552b427a1cd |
completed | March 27, 2026, 1:39 p.m. |
| NER | Named-entity recognition | batch_69c6e64ab1f881908bc2468cc72d2544 |
completed | March 27, 2026, 8:19 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c7cbcf5f14819097a507bd64f1031f |
completed | March 28, 2026, 12:38 p.m. |
| NEDg | Description generation | batch_69c7cc5af4f48190a146f7026307bfbe |
completed | March 28, 2026, 12:40 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69c7cd0eb36c8190bc8e4265033d214f |
completed | March 28, 2026, 12:43 p.m. |
Created at: March 27, 2026, 2:44 p.m.