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.