Triple
T5445474
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Kanpur Central railway station |
E122237
|
entity |
| Predicate | isMajorJunctionOnLine |
P64350
|
FINISHED |
| Object |
Howrah–Delhi main line
The Howrah–Delhi main line is one of India's busiest and most important railway corridors, connecting Kolkata (Howrah) with the national capital New Delhi and passing through major cities across northern and eastern India.
|
E520995
|
NE FINISHED |
How this triple was built (5 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: Howrah–Delhi main line | Statement: [Kanpur Central railway station, isMajorJunctionOnLine, Howrah–Delhi main line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Howrah–Delhi main line Context triple: [Kanpur Central railway station, isMajorJunctionOnLine, Howrah–Delhi main line]
-
A.
Howrah–Bardhaman main line
The Howrah–Bardhaman main line is a major suburban and long-distance railway corridor in West Bengal, India, connecting Howrah (Kolkata) with Bardhaman and serving numerous important towns along the route.
-
B.
Howrah–New Jalpaiguri line
The Howrah–New Jalpaiguri line is a major railway route in the Indian state of West Bengal that connects Kolkata’s Howrah station with New Jalpaiguri, serving as a key corridor between southern and northern Bengal.
-
C.
Howrah–Nagpur–Mumbai line
The Howrah–Nagpur–Mumbai line is a major Indian Railways trunk route connecting Kolkata (Howrah) in the east with Mumbai in the west via Nagpur, serving as a key corridor for both passenger and freight traffic across central India.
-
D.
Delhi–Ambala railway line
The Delhi–Ambala railway line is a key rail corridor in northern India connecting the national capital Delhi with the city of Ambala, serving major towns and districts along its route.
-
E.
Delhi–Jammu Tawi line
The Delhi–Jammu Tawi line is a key Indian Railways route connecting the national capital Delhi with the city of Jammu, serving as a major passenger and strategic corridor in North India.
- 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: Howrah–Delhi main line Triple: [Kanpur Central railway station, isMajorJunctionOnLine, Howrah–Delhi main line]
Generated description
The Howrah–Delhi main line is one of India's busiest and most important railway corridors, connecting Kolkata (Howrah) with the national capital New Delhi and passing through major cities across northern and eastern India.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Howrah–Delhi main line Target entity description: The Howrah–Delhi main line is one of India's busiest and most important railway corridors, connecting Kolkata (Howrah) with the national capital New Delhi and passing through major cities across northern and eastern India.
-
A.
Howrah–Bardhaman main line
The Howrah–Bardhaman main line is a major suburban and long-distance railway corridor in West Bengal, India, connecting Howrah (Kolkata) with Bardhaman and serving numerous important towns along the route.
-
B.
Howrah–New Jalpaiguri line
The Howrah–New Jalpaiguri line is a major railway route in the Indian state of West Bengal that connects Kolkata’s Howrah station with New Jalpaiguri, serving as a key corridor between southern and northern Bengal.
-
C.
Howrah–Nagpur–Mumbai line
The Howrah–Nagpur–Mumbai line is a major Indian Railways trunk route connecting Kolkata (Howrah) in the east with Mumbai in the west via Nagpur, serving as a key corridor for both passenger and freight traffic across central India.
-
D.
Delhi–Ambala railway line
The Delhi–Ambala railway line is a key rail corridor in northern India connecting the national capital Delhi with the city of Ambala, serving major towns and districts along its route.
-
E.
Delhi–Jammu Tawi line
The Delhi–Jammu Tawi line is a key Indian Railways route connecting the national capital Delhi with the city of Jammu, serving as a major passenger and strategic corridor in North India.
- F. None of above. chosen
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: isMajorJunctionOnLine Context triple: [Kanpur Central railway station, isMajorJunctionOnLine, Howrah–Delhi main line]
-
A.
isMajorRoadJunction
Indicates that a location serves as a primary intersection where major roads or highways meet or cross.
-
B.
isNumberedJunctionOf
Indicates that a junction (such as a road or rail intersection) has been assigned an official identifying number within a network.
-
C.
isMajorInterchangeFor
Indicates that one location functions as a primary hub where multiple routes or lines connect or transfer between each other for another location.
-
D.
isMajorRoadIn
Indicates that a road is classified as a major road within a specified geographic area or jurisdiction.
-
E.
hasJunctionNumber
Indicates that a road, route, or similar pathway is assigned a specific junction or exit number.
- F. None of above. chosen
Provenance (7 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_69bd4640f52c81909e653ec361f66d76 |
completed | March 20, 2026, 1:06 p.m. |
| NER | Named-entity recognition | batch_69bd95be329c81908783420cf81b6af5 |
completed | March 20, 2026, 6:45 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69bf413573c08190beae400c485d2132 |
completed | March 22, 2026, 1:09 a.m. |
| NEDg | Description generation | batch_69bf4364b2f48190b69cc27ca6900892 |
completed | March 22, 2026, 1:18 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69bf43b523a88190938662ae89eba502 |
completed | March 22, 2026, 1:19 a.m. |
| PD | Predicate disambiguation | batch_69bd919e8d18819098c4af6a015e5cc2 |
completed | March 20, 2026, 6:27 p.m. |
| PDg | Predicate description generation | batch_69bd95bd53f48190a03144beb290f2cb |
completed | March 20, 2026, 6:45 p.m. |
Created at: March 20, 2026, 2:07 p.m.