Triple

T7071367
Position Surface form Disambiguated ID Type / Status
Subject Amtrak Piedmont E164704 entity
Predicate corridor P5520 FINISHED
Object Piedmont corridor
The Piedmont corridor is a passenger rail route in North Carolina connecting key cities such as Raleigh, Durham, Greensboro, and Charlotte.
E641322 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: Piedmont corridor | Statement: [Amtrak Piedmont, corridor, Piedmont corridor]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Piedmont corridor
Context triple: [Amtrak Piedmont, corridor, Piedmont corridor]
  • A. Southeast Corridor
    The Southeast Corridor is a key passenger rail route in the southeastern United States served by Amtrak’s Carolinian train.
  • B. Geneva Spur
    Geneva Spur is a branch of the Illinois Prairie Path, a multi-use recreational trail in the Chicago metropolitan area.
  • C. Atlanta–Columbus corridor
    The Atlanta–Columbus corridor is a major transportation and economic route in western Georgia that links the Atlanta metropolitan area with the city of Columbus and the communities in between.
  • D. Baltimore–Harrisburg corridor
    The Baltimore–Harrisburg corridor is a key Mid-Atlantic transportation and economic region linking Baltimore, Maryland with Harrisburg, Pennsylvania.
  • E. Washington & Old Dominion Railroad Trail
    The Washington & Old Dominion Railroad Trail is a popular multi-use paved rail trail in Northern Virginia that follows a former railroad corridor through several communities for recreation and commuting.
  • 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: Piedmont corridor
Triple: [Amtrak Piedmont, corridor, Piedmont corridor]
Generated description
The Piedmont corridor is a passenger rail route in North Carolina connecting key cities such as Raleigh, Durham, Greensboro, and Charlotte.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Piedmont corridor
Target entity description: The Piedmont corridor is a passenger rail route in North Carolina connecting key cities such as Raleigh, Durham, Greensboro, and Charlotte.
  • A. Southeast Corridor
    The Southeast Corridor is a key passenger rail route in the southeastern United States served by Amtrak’s Carolinian train.
  • B. Geneva Spur
    Geneva Spur is a branch of the Illinois Prairie Path, a multi-use recreational trail in the Chicago metropolitan area.
  • C. Atlanta–Columbus corridor
    The Atlanta–Columbus corridor is a major transportation and economic route in western Georgia that links the Atlanta metropolitan area with the city of Columbus and the communities in between.
  • D. Baltimore–Harrisburg corridor
    The Baltimore–Harrisburg corridor is a key Mid-Atlantic transportation and economic region linking Baltimore, Maryland with Harrisburg, Pennsylvania.
  • E. Washington & Old Dominion Railroad Trail
    The Washington & Old Dominion Railroad Trail is a popular multi-use paved rail trail in Northern Virginia that follows a former railroad corridor through several communities for recreation and commuting.
  • 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_69c6887b96548190a8a9b3ac8adf4119 completed March 27, 2026, 1:39 p.m.
NER Named-entity recognition batch_69c6e4c9cdbc8190b91cd3b4eef58eb6 completed March 27, 2026, 8:12 p.m.
NED1 Entity disambiguation (via context triple) batch_69c7945a98108190b982ad41222333e4 completed March 28, 2026, 8:42 a.m.
NEDg Description generation batch_69c7987eb82c819097194f3b1a5ebfac completed March 28, 2026, 8:59 a.m.
NED2 Entity disambiguation (via description) batch_69c79a9087508190b56f14e193d924ca completed March 28, 2026, 9:08 a.m.
Created at: March 27, 2026, 2:39 p.m.