Triple

T23496678
Position Surface form Disambiguated ID Type / Status
Subject Kannur railway station E571722 entity
Predicate railwayLine P848 FINISHED
Object Mangalore–Palakkad line
The Mangalore–Palakkad line is a major railway route in southern India that runs along the Malabar Coast, connecting the coastal city of Mangalore in Karnataka with Palakkad in Kerala and serving numerous important towns and cities in between.
E1591351 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: Mangalore–Palakkad line | Statement: [Kannur railway station, railwayLine, Mangalore–Palakkad line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Mangalore–Palakkad line
Context triple: [Kannur railway station, railwayLine, Mangalore–Palakkad line]
  • A. Coimbatore–Shoranur line
    The Coimbatore–Shoranur line is a key broad-gauge railway route in southern India that connects Coimbatore in Tamil Nadu with Shoranur in Kerala, facilitating major passenger and freight movement between the two states.
  • B. Chennai–Thiruvananthapuram line
    The Chennai–Thiruvananthapuram line is a major Indian Railways route in South India that connects Tamil Nadu’s capital Chennai with Kerala’s capital Thiruvananthapuram, serving numerous important cities and towns along the way.
  • C. Jolarpettai–Shoranur line
    The Jolarpettai–Shoranur line is a major broad-gauge railway route in southern India that connects Tamil Nadu with Kerala, serving as an important corridor for both passenger and freight traffic.
  • D. Chennai–Bangalore line
    The Chennai–Bangalore line is a major Indian Railways trunk route connecting the cities of Chennai in Tamil Nadu and Bengaluru in Karnataka, serving numerous intermediate towns and suburban areas.
  • E. Bengaluru–Tumakuru line
    The Bengaluru–Tumakuru line is a key suburban and intercity railway corridor in Karnataka, India, connecting the major urban centers of Bengaluru and Tumakuru and serving as an important route for both passenger and freight traffic.
  • 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: Mangalore–Palakkad line
Triple: [Kannur railway station, railwayLine, Mangalore–Palakkad line]
Generated description
The Mangalore–Palakkad line is a major railway route in southern India that runs along the Malabar Coast, connecting the coastal city of Mangalore in Karnataka with Palakkad in Kerala and serving numerous important towns and cities in between.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Mangalore–Palakkad line
Target entity description: The Mangalore–Palakkad line is a major railway route in southern India that runs along the Malabar Coast, connecting the coastal city of Mangalore in Karnataka with Palakkad in Kerala and serving numerous important towns and cities in between.
  • A. Coimbatore–Shoranur line
    The Coimbatore–Shoranur line is a key broad-gauge railway route in southern India that connects Coimbatore in Tamil Nadu with Shoranur in Kerala, facilitating major passenger and freight movement between the two states.
  • B. Chennai–Thiruvananthapuram line
    The Chennai–Thiruvananthapuram line is a major Indian Railways route in South India that connects Tamil Nadu’s capital Chennai with Kerala’s capital Thiruvananthapuram, serving numerous important cities and towns along the way.
  • C. Jolarpettai–Shoranur line
    The Jolarpettai–Shoranur line is a major broad-gauge railway route in southern India that connects Tamil Nadu with Kerala, serving as an important corridor for both passenger and freight traffic.
  • D. Chennai–Bangalore line
    The Chennai–Bangalore line is a major Indian Railways trunk route connecting the cities of Chennai in Tamil Nadu and Bengaluru in Karnataka, serving numerous intermediate towns and suburban areas.
  • E. Bengaluru–Tumakuru line
    The Bengaluru–Tumakuru line is a key suburban and intercity railway corridor in Karnataka, India, connecting the major urban centers of Bengaluru and Tumakuru and serving as an important route for both passenger and freight traffic.
  • 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_69e245b4829881909b77a70e942bbd54 completed April 17, 2026, 2:37 p.m.
NER Named-entity recognition batch_69f1a7e00384819092729319a378d4ab completed April 29, 2026, 6:40 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0cdf434de08190ae283b260c5d7579 completed May 19, 2026, 10:08 p.m.
NEDg Description generation batch_6a0ce324b91481908741290de0f1e3ea completed May 19, 2026, 10:24 p.m.
NED2 Entity disambiguation (via description) batch_6a0ce3e41c60819095760a2c5a224fb3 completed May 19, 2026, 10:27 p.m.
Created at: April 17, 2026, 6:05 p.m.