Triple

T12697610
Position Surface form Disambiguated ID Type / Status
Subject Meridian Union Station E303375 entity
Predicate isOn P1493 FINISHED
Object Norfolk Southern Railway line
The Norfolk Southern Railway line is a major freight rail corridor in the United States operated by Norfolk Southern Corporation, connecting key industrial and transportation hubs across the eastern part of the country.
E581822 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: Norfolk Southern Railway line | Statement: [Meridian Union Station, isOn, Norfolk Southern Railway line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Norfolk Southern Railway line
Context triple: [Meridian Union Station, isOn, Norfolk Southern Railway line]
  • A. Norfolk Southern Railway main line
    The Norfolk Southern Railway main line is a major freight and passenger rail corridor in the eastern United States operated by Norfolk Southern Railway.
  • B. CSX railroad line
    The CSX railroad line is a freight rail route operated by CSX Transportation that serves as a key corridor for moving goods through Columbiana, Alabama and the surrounding region.
  • C. Norfolk Southern Southern Tier Line
    The Norfolk Southern Southern Tier Line is a freight rail corridor in New York State that also hosts Metro-North’s Port Jervis Line commuter service.
  • D. Southern Main Line
    The Southern Main Line is a major Swedish railway route that connects key cities in the southern part of the country and serves as an important corridor for both passenger and freight traffic.
  • E. Norfolk Southern Pittsburgh Line
    The Norfolk Southern Pittsburgh Line is a major freight rail corridor crossing Pennsylvania, known for its heavy traffic, steep grades, and key role in linking the U.S. East Coast with the Midwest.
  • 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: Norfolk Southern Railway line
Triple: [Meridian Union Station, isOn, Norfolk Southern Railway line]
Generated description
The Norfolk Southern Railway line is a major freight rail corridor in the United States operated by Norfolk Southern Corporation, connecting key industrial and transportation hubs across the eastern part of the country.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Norfolk Southern Railway line
Target entity description: The Norfolk Southern Railway line is a major freight rail corridor in the United States operated by Norfolk Southern Corporation, connecting key industrial and transportation hubs across the eastern part of the country.
  • A. Norfolk Southern Railway main line chosen
    The Norfolk Southern Railway main line is a major freight and passenger rail corridor in the eastern United States operated by Norfolk Southern Railway.
  • B. CSX railroad line
    The CSX railroad line is a freight rail route operated by CSX Transportation that serves as a key corridor for moving goods through Columbiana, Alabama and the surrounding region.
  • C. Norfolk Southern Southern Tier Line
    The Norfolk Southern Southern Tier Line is a freight rail corridor in New York State that also hosts Metro-North’s Port Jervis Line commuter service.
  • D. Southern Main Line
    The Southern Main Line is a major Swedish railway route that connects key cities in the southern part of the country and serves as an important corridor for both passenger and freight traffic.
  • E. Norfolk Southern Pittsburgh Line
    The Norfolk Southern Pittsburgh Line is a major freight rail corridor crossing Pennsylvania, known for its heavy traffic, steep grades, and key role in linking the U.S. East Coast with the Midwest.
  • F. None of above.

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_69d7bdef90d48190b46b88270e780946 completed April 9, 2026, 2:55 p.m.
NER Named-entity recognition batch_69d961ed26588190ae76ff17159e06ec completed April 10, 2026, 8:47 p.m.
NED1 Entity disambiguation (via context triple) batch_69f67c7c4c608190a1786accf8d86141 completed May 2, 2026, 10:36 p.m.
NEDg Description generation batch_69f67d64ed3481908d434c20796866f9 completed May 2, 2026, 10:40 p.m.
NED2 Entity disambiguation (via description) batch_69f67e82e35081909c4b5fad7e941610 completed May 2, 2026, 10:45 p.m.
Created at: April 9, 2026, 5:22 p.m.