Triple
T21890
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Pennsylvania Railroad Company |
E435
|
entity |
| Predicate | built |
P1028
|
FINISHED |
| Object |
Pennsylvania Station (Baltimore)
Pennsylvania Station (Baltimore) is the main intercity and regional rail hub in Baltimore, Maryland, serving Amtrak and commuter trains along the Northeast Corridor.
|
E6568
|
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: Pennsylvania Station (Baltimore) | Statement: [Pennsylvania Railroad Company, built, Pennsylvania Station (Baltimore)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Pennsylvania Station (Baltimore) Context triple: [Pennsylvania Railroad Company, built, Pennsylvania Station (Baltimore)]
-
A.
Belmont Center station
Belmont Center station is a Massachusetts Bay Transportation Authority (MBTA) commuter rail stop located in the commercial center of Belmont, Massachusetts.
-
B.
North Station
North Station is a major transportation hub in Boston, Massachusetts, serving as a key commuter rail, subway, and intercity bus terminal integrated with the TD Garden arena.
-
C.
30th Street Station
30th Street Station is a major intercity and regional rail hub in Philadelphia, serving Amtrak, SEPTA, and NJ Transit and connecting the city to destinations across the Northeast and beyond.
-
D.
Penn Station (New York City)
Penn Station (New York City) is a major underground railroad station and one of the busiest transportation hubs in the United States, serving Amtrak, commuter rail, and subway lines in Midtown Manhattan.
-
E.
Foggy Bottom–GWU station
Foggy Bottom–GWU station is a Washington, D.C. Metrorail station on the Blue, Orange, and Silver lines serving the George Washington University campus and nearby landmarks including the Kennedy Center.
- 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: Pennsylvania Station (Baltimore) Triple: [Pennsylvania Railroad Company, built, Pennsylvania Station (Baltimore)]
Generated description
Pennsylvania Station (Baltimore) is the main intercity and regional rail hub in Baltimore, Maryland, serving Amtrak and commuter trains along the Northeast Corridor.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Pennsylvania Station (Baltimore) Target entity description: Pennsylvania Station (Baltimore) is the main intercity and regional rail hub in Baltimore, Maryland, serving Amtrak and commuter trains along the Northeast Corridor.
-
A.
Belmont Center station
Belmont Center station is a Massachusetts Bay Transportation Authority (MBTA) commuter rail stop located in the commercial center of Belmont, Massachusetts.
-
B.
North Station
North Station is a major transportation hub in Boston, Massachusetts, serving as a key commuter rail, subway, and intercity bus terminal integrated with the TD Garden arena.
-
C.
30th Street Station
30th Street Station is a major intercity and regional rail hub in Philadelphia, serving Amtrak, SEPTA, and NJ Transit and connecting the city to destinations across the Northeast and beyond.
-
D.
Penn Station (New York City)
Penn Station (New York City) is a major underground railroad station and one of the busiest transportation hubs in the United States, serving Amtrak, commuter rail, and subway lines in Midtown Manhattan.
-
E.
Foggy Bottom–GWU station
Foggy Bottom–GWU station is a Washington, D.C. Metrorail station on the Blue, Orange, and Silver lines serving the George Washington University campus and nearby landmarks including the Kennedy Center.
- 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_69a243b4ac2c8190b93c303df797b7b2 |
completed | Feb. 28, 2026, 1:24 a.m. |
| NER | Named-entity recognition | batch_69a2481e91c88190ad0fb09cddc5f446 |
completed | Feb. 28, 2026, 1:42 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a25aaf595c8190b1f6b559f49efd7f |
completed | Feb. 28, 2026, 3:02 a.m. |
| NEDg | Description generation | batch_69a25ba68f1081908f88d2bb2af35af6 |
completed | Feb. 28, 2026, 3:06 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69a25c4a5fa8819082a737e1f0251a8a |
completed | Feb. 28, 2026, 3:08 a.m. |
Created at: Feb. 28, 2026, 1:34 a.m.