Triple
T13338926
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Amtrak Downeaster (at North Station) |
E317770
|
entity |
| Predicate | category |
P87
|
FINISHED |
| Object |
Amtrak routes
Amtrak routes are the network of passenger rail lines operated by Amtrak across the United States and parts of Canada, connecting major cities and regions with intercity train service.
|
E1034959
|
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: Amtrak routes | Statement: [Amtrak Downeaster (at North Station), category, Amtrak routes]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Amtrak routes Context triple: [Amtrak Downeaster (at North Station), category, Amtrak routes]
-
A.
Amtrak long-distance routes
Amtrak long-distance routes are the United States’ cross-country and overnight passenger train services that connect major cities and regions over extended distances.
-
B.
Amtrak Northeast Corridor routes
Amtrak Northeast Corridor routes are the heavily traveled passenger rail lines connecting major cities from Boston through New York and Philadelphia to Washington, D.C., forming the busiest and most important rail corridor in the United States.
-
C.
Amtrak state-supported routes program
The Amtrak state-supported routes program is a funding and operational framework in which U.S. states partner with Amtrak to subsidize and manage shorter-distance intercity passenger rail services beyond the federally supported long-distance network.
-
D.
Amtrak Silver Star route
The Amtrak Silver Star route is a long-distance passenger train service running between New York City and Miami, providing intercity rail connections along the U.S. East Coast and through central Florida.
-
E.
Amtrak corridor services
Amtrak corridor services are short- to medium-distance intercity passenger rail routes that connect major cities and regions across the United States with frequent, higher-speed train service.
- 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 routes Triple: [Amtrak Downeaster (at North Station), category, Amtrak routes]
Generated description
Amtrak routes are the network of passenger rail lines operated by Amtrak across the United States and parts of Canada, connecting major cities and regions with intercity train service.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Amtrak routes Target entity description: Amtrak routes are the network of passenger rail lines operated by Amtrak across the United States and parts of Canada, connecting major cities and regions with intercity train service.
-
A.
Amtrak long-distance routes
Amtrak long-distance routes are the United States’ cross-country and overnight passenger train services that connect major cities and regions over extended distances.
-
B.
Amtrak Northeast Corridor routes
Amtrak Northeast Corridor routes are the heavily traveled passenger rail lines connecting major cities from Boston through New York and Philadelphia to Washington, D.C., forming the busiest and most important rail corridor in the United States.
-
C.
Amtrak state-supported routes program
The Amtrak state-supported routes program is a funding and operational framework in which U.S. states partner with Amtrak to subsidize and manage shorter-distance intercity passenger rail services beyond the federally supported long-distance network.
-
D.
Amtrak Silver Star route
The Amtrak Silver Star route is a long-distance passenger train service running between New York City and Miami, providing intercity rail connections along the U.S. East Coast and through central Florida.
-
E.
Amtrak corridor services
Amtrak corridor services are short- to medium-distance intercity passenger rail routes that connect major cities and regions across the United States with frequent, higher-speed train service.
- 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_69d806b5a3c08190b42c267fb092f98a |
completed | April 9, 2026, 8:06 p.m. |
| NER | Named-entity recognition | batch_69d99d01bf8481908cd3a99e5557b972 |
completed | April 11, 2026, 12:59 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f71f3bb06c8190beaf6dfbba9ff613 |
completed | May 3, 2026, 10:11 a.m. |
| NEDg | Description generation | batch_69f720861728819088bc43753d19bef8 |
completed | May 3, 2026, 10:16 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69f7212ca3f48190915d73f987ec60d2 |
completed | May 3, 2026, 10:19 a.m. |
Created at: April 9, 2026, 9:31 p.m.