Triple
T4173190
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Middlesex County |
E86410
|
entity |
| Predicate | servedByRailLine |
P1293
|
FINISHED |
| Object | Northeast Corridor |
E2775
|
NE FINISHED |
How this triple was built (2 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 Corridor | Statement: [Middlesex County, servedByRailLine, Northeast Corridor]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Northeast Corridor Context triple: [Middlesex County, servedByRailLine, Northeast Corridor]
-
A.
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.
-
B.
Amtrak Empire Corridor
The Amtrak Empire Corridor is a major passenger rail route in New York State that connects New York City with Albany and other upstate cities along the Hudson River and beyond.
-
C.
Baltimore–Harrisburg corridor
The Baltimore–Harrisburg corridor is a key Mid-Atlantic transportation and economic region linking Baltimore, Maryland with Harrisburg, Pennsylvania.
-
D.
Trans-Hudson rail network
The Trans-Hudson rail network is a rapid transit system that connects New Jersey with Manhattan via tunnels under the Hudson River, primarily serving commuters traveling between the two states.
-
E.
Boston–Portland main line
The Boston–Portland main line is a historic New England railroad corridor connecting Boston, Massachusetts, with Portland, Maine, that has long served as a key passenger and freight route along the region’s coast.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69aed93de98c8190ad838ce507b77c8a |
completed | March 9, 2026, 2:29 p.m. |
| NER | Named-entity recognition | batch_69af02e65b548190be095df62091b960 |
completed | March 9, 2026, 5:27 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b596151b3c8190a70653747f7e3ff3 |
completed | March 14, 2026, 5:08 p.m. |
Created at: March 9, 2026, 3:45 p.m.