Triple
T21572843
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Harrisburg–Philadelphia–New York City |
E532325
|
entity |
| Predicate | usedByService |
P1294
|
FINISHED |
| Object |
Northeast Regional (Philadelphia–New York City segment)
The Northeast Regional (Philadelphia–New York City segment) is an Amtrak intercity rail service that provides frequent, medium-distance passenger trains connecting Philadelphia with New York City along the busy Northeast Corridor.
|
E1491905
|
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: Northeast Regional (Philadelphia–New York City segment) | Statement: [Harrisburg–Philadelphia–New York City, usedByService, Northeast Regional (Philadelphia–New York City segment)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Northeast Regional (Philadelphia–New York City segment) Context triple: [Harrisburg–Philadelphia–New York City, usedByService, Northeast Regional (Philadelphia–New York City segment)]
-
A.
New York–Scranton corridor
The New York–Scranton corridor is a historically significant rail route linking New York City with Scranton, Pennsylvania, that served as a key passenger and freight artery in the northeastern United States.
-
B.
Buffalo–Scranton corridor
The Buffalo–Scranton corridor is a historically significant organized-crime territory in the northeastern United States, spanning parts of upstate New York and northeastern Pennsylvania.
-
C.
Philadelphia–Camden corridor
The Philadelphia–Camden corridor is a major bi-state urban and transportation axis linking Philadelphia, Pennsylvania, with Camden, New Jersey, and surrounding communities.
-
D.
Midwest–Northeast corridor
The Midwest–Northeast corridor is a major U.S. passenger rail route linking Chicago with key cities in the Northeastern United States.
-
E.
Baltimore–Philadelphia route
The Baltimore–Philadelphia route is a historic rail corridor in the Mid-Atlantic United States that connects Baltimore, Maryland, with Philadelphia, Pennsylvania, and includes intermediate stops such as Elkton, Maryland.
- 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: Northeast Regional (Philadelphia–New York City segment) Triple: [Harrisburg–Philadelphia–New York City, usedByService, Northeast Regional (Philadelphia–New York City segment)]
Generated description
The Northeast Regional (Philadelphia–New York City segment) is an Amtrak intercity rail service that provides frequent, medium-distance passenger trains connecting Philadelphia with New York City along the busy Northeast Corridor.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Northeast Regional (Philadelphia–New York City segment) Target entity description: The Northeast Regional (Philadelphia–New York City segment) is an Amtrak intercity rail service that provides frequent, medium-distance passenger trains connecting Philadelphia with New York City along the busy Northeast Corridor.
-
A.
New York–Scranton corridor
The New York–Scranton corridor is a historically significant rail route linking New York City with Scranton, Pennsylvania, that served as a key passenger and freight artery in the northeastern United States.
-
B.
Buffalo–Scranton corridor
The Buffalo–Scranton corridor is a historically significant organized-crime territory in the northeastern United States, spanning parts of upstate New York and northeastern Pennsylvania.
-
C.
Philadelphia–Camden corridor
The Philadelphia–Camden corridor is a major bi-state urban and transportation axis linking Philadelphia, Pennsylvania, with Camden, New Jersey, and surrounding communities.
-
D.
Midwest–Northeast corridor
The Midwest–Northeast corridor is a major U.S. passenger rail route linking Chicago with key cities in the Northeastern United States.
-
E.
Baltimore–Philadelphia route
The Baltimore–Philadelphia route is a historic rail corridor in the Mid-Atlantic United States that connects Baltimore, Maryland, with Philadelphia, Pennsylvania, and includes intermediate stops such as Elkton, Maryland.
- 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_69e0c4618bec8190bcb0feb74568cbb1 |
completed | April 16, 2026, 11:13 a.m. |
| NER | Named-entity recognition | batch_69eee9ce230c81909e12bd59497e2237 |
completed | April 27, 2026, 4:45 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a09f672b5808190a2dd61c26ce64403 |
completed | May 17, 2026, 5:10 p.m. |
| NEDg | Description generation | batch_6a09f78a3d788190b4b19f3b6463550e |
completed | May 17, 2026, 5:14 p.m. |
| NED2 | Entity disambiguation (via description) | batch_6a09f825b02c819096f57b1dba02ded2 |
completed | May 17, 2026, 5:17 p.m. |
Created at: April 16, 2026, 6:30 p.m.