Triple
T11001
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Union Station (Washington, D.C.) |
E223
|
entity |
| Predicate | servedByService |
P1294
|
FINISHED |
| Object |
Northeast Regional
The Northeast Regional is an Amtrak intercity rail service that operates frequent passenger trains along the busy Northeast Corridor between major cities such as Boston, New York, Philadelphia, and Washington, D.C.
|
E2775
|
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 | Statement: [Union Station (Washington, D.C.), servedByService, Northeast Regional]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Northeast Regional Context triple: [Union Station (Washington, D.C.), servedByService, Northeast Regional]
-
A.
New England
New England is a historic region in the northeastern United States known for its colonial heritage, distinct seasons, and influential role in American culture and politics.
-
B.
Eastern Conference
The Eastern Conference is one of the two primary regional groupings of teams in Major League Soccer, comprising clubs based largely in the eastern United States and Canada.
-
C.
Eastern Conference
The Eastern Conference is one of the two primary conferences in the National Basketball Association (NBA), comprising teams based largely in the eastern United States.
-
D.
Northeast Corridor
The Northeast Corridor is the busiest passenger rail line in the United States, running primarily Amtrak and commuter trains along the urbanized spine of the East Coast between major cities such as Washington, D.C., Philadelphia, New York City, and Boston.
-
E.
Hudson Valley
Hudson Valley is a scenic region in eastern New York State known for its historic riverfront towns, agriculture and wineries, and proximity to New York City.
- 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 Triple: [Union Station (Washington, D.C.), servedByService, Northeast Regional]
Generated description
The Northeast Regional is an Amtrak intercity rail service that operates frequent passenger trains along the busy Northeast Corridor between major cities such as Boston, New York, Philadelphia, and Washington, D.C.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Northeast Regional Target entity description: The Northeast Regional is an Amtrak intercity rail service that operates frequent passenger trains along the busy Northeast Corridor between major cities such as Boston, New York, Philadelphia, and Washington, D.C.
-
A.
New England
New England is a historic region in the northeastern United States known for its colonial heritage, distinct seasons, and influential role in American culture and politics.
-
B.
Eastern Conference
The Eastern Conference is one of the two primary regional groupings of teams in Major League Soccer, comprising clubs based largely in the eastern United States and Canada.
-
C.
Eastern Conference
The Eastern Conference is one of the two primary conferences in the National Basketball Association (NBA), comprising teams based largely in the eastern United States.
-
D.
Northeast Corridor
chosen
The Northeast Corridor is the busiest passenger rail line in the United States, running primarily Amtrak and commuter trains along the urbanized spine of the East Coast between major cities such as Washington, D.C., Philadelphia, New York City, and Boston.
-
E.
Hudson Valley
Hudson Valley is a scenic region in eastern New York State known for its historic riverfront towns, agriculture and wineries, and proximity to New York City.
- 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_69a23d7ad88c8190bffe8ab091d86642 |
completed | Feb. 28, 2026, 12:57 a.m. |
| NER | Named-entity recognition | batch_69a2465b2cf881908bf61c461e04cf6a |
completed | Feb. 28, 2026, 1:35 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a262364cf48190b390bab67cee9312 |
completed | Feb. 28, 2026, 3:34 a.m. |
| NEDg | Description generation | batch_69a262e524e88190854d3585d6694bc0 |
completed | Feb. 28, 2026, 3:37 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69a26357a9d08190972bfc596be2baac |
completed | Feb. 28, 2026, 3:39 a.m. |
Created at: Feb. 28, 2026, 1:02 a.m.