Triple
T7910500
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Moynihan Train Hall |
E183684
|
entity |
| Predicate | platformAccessTo |
P78970
|
FINISHED |
| Object |
Amtrak tracks at Penn Station
Amtrak tracks at Penn Station are the below-ground rail lines and platforms in Midtown Manhattan that serve Amtrak’s intercity trains and are accessed in part through the adjacent Moynihan Train Hall.
|
E700792
|
NE FINISHED |
How this triple was built (5 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: Amtrak tracks at Penn Station | Statement: [Moynihan Train Hall, platformAccessTo, Amtrak tracks at Penn Station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Amtrak tracks at Penn Station Context triple: [Moynihan Train Hall, platformAccessTo, Amtrak tracks at Penn Station]
-
A.
Long Island Rail Road at Penn Station
Long Island Rail Road at Penn Station is a major commuter rail hub in Midtown Manhattan that serves as the primary New York City terminal for Long Island Rail Road trains.
-
B.
Amtrak at South Station
Amtrak at South Station is the intercity passenger rail service operating from Boston’s historic South Station, providing regional and long-distance train connections along the Northeast Corridor and beyond.
-
C.
Hudson Line at Grand Central Terminal
The Hudson Line at Grand Central Terminal is a major Metro-North Railroad commuter rail line serving communities along the Hudson River and terminating at New York City's Grand Central Terminal.
-
D.
Metropolitan Transportation Authority rail yard
The Metropolitan Transportation Authority rail yard is a major train storage and maintenance facility on Manhattan’s West Side that historically served as a key operations hub for New York City’s commuter rail system.
-
E.
Peekskill train station
Peekskill train station is a Metro-North Railroad stop on the Hudson Line serving commuters and travelers in Peekskill, New York, along the Hudson River.
- 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: Amtrak tracks at Penn Station Triple: [Moynihan Train Hall, platformAccessTo, Amtrak tracks at Penn Station]
Generated description
Amtrak tracks at Penn Station are the below-ground rail lines and platforms in Midtown Manhattan that serve Amtrak’s intercity trains and are accessed in part through the adjacent Moynihan Train Hall.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Amtrak tracks at Penn Station Target entity description: Amtrak tracks at Penn Station are the below-ground rail lines and platforms in Midtown Manhattan that serve Amtrak’s intercity trains and are accessed in part through the adjacent Moynihan Train Hall.
-
A.
Long Island Rail Road at Penn Station
Long Island Rail Road at Penn Station is a major commuter rail hub in Midtown Manhattan that serves as the primary New York City terminal for Long Island Rail Road trains.
-
B.
Amtrak at South Station
Amtrak at South Station is the intercity passenger rail service operating from Boston’s historic South Station, providing regional and long-distance train connections along the Northeast Corridor and beyond.
-
C.
Hudson Line at Grand Central Terminal
The Hudson Line at Grand Central Terminal is a major Metro-North Railroad commuter rail line serving communities along the Hudson River and terminating at New York City's Grand Central Terminal.
-
D.
Metropolitan Transportation Authority rail yard
The Metropolitan Transportation Authority rail yard is a major train storage and maintenance facility on Manhattan’s West Side that historically served as a key operations hub for New York City’s commuter rail system.
-
E.
Peekskill train station
Peekskill train station is a Metro-North Railroad stop on the Hudson Line serving commuters and travelers in Peekskill, New York, along the Hudson River.
- F. None of above. chosen
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: platformAccessTo Context triple: [Moynihan Train Hall, platformAccessTo, Amtrak tracks at Penn Station]
-
A.
accessToPlatforms
chosen
Indicates that one entity is able to use, reach, or interact with certain platforms provided or controlled by another entity.
-
B.
platformMate
Indicates that two entities are located on the same platform or share the same platform context at a given time.
-
C.
platformStrategy
Indicates a relationship where an entity defines or employs an overarching plan for building, managing, or leveraging a platform to create and capture value among its participants.
-
D.
platformLocation
Indicates the spatial position or placement of a platform relative to a reference point or environment.
-
E.
surfaceAccess
Indicates that one entity provides a means for another entity to reach, enter, or interact with a surface or outer layer.
- F. None of above.
Provenance (6 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_69ca828dec0c81908b8f55a4dbbb53ff |
completed | March 30, 2026, 2:02 p.m. |
| NER | Named-entity recognition | batch_69cb3a5db9508190bbe92673ef5a7861 |
completed | March 31, 2026, 3:07 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69cb5bd54f548190916bf00852f37224 |
completed | March 31, 2026, 5:29 a.m. |
| NEDg | Description generation | batch_69cb78f72878819086092c9fe267e37f |
completed | March 31, 2026, 7:34 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69cbbf2a357081908ac2230f0dfd9cdc |
completed | March 31, 2026, 12:33 p.m. |
| PD | Predicate disambiguation | batch_69cae92f9498819085277879e59aa072 |
completed | March 30, 2026, 9:20 p.m. |
Created at: March 30, 2026, 5:04 p.m.