Triple
T14252719
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Saco, Maine |
E353308
|
entity |
| Predicate | hasRailService |
P782
|
FINISHED |
| Object | Amtrak Downeaster (nearby in Saco–Biddeford) |
E347183
|
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: Amtrak Downeaster (nearby in Saco–Biddeford) | Statement: [Saco, Maine, hasRailService, Amtrak Downeaster (nearby in Saco–Biddeford)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Amtrak Downeaster (nearby in Saco–Biddeford) Context triple: [Saco, Maine, hasRailService, Amtrak Downeaster (nearby in Saco–Biddeford)]
-
A.
Amtrak Downeaster (at North Station)
The Amtrak Downeaster (at North Station) is an intercity passenger rail service that operates between Boston’s North Station and Brunswick, Maine, providing regional connections through New Hampshire and coastal Maine.
-
B.
Amtrak Downeaster
chosen
Amtrak Downeaster is a passenger rail service operated by Amtrak that connects Boston with several communities in Maine and New Hampshire.
-
C.
Boston, Massachusetts (via Downeaster)
Boston, Massachusetts (via Downeaster) refers to the city of Boston as a destination on Amtrak’s Downeaster passenger rail line connecting it with communities in New Hampshire and Maine.
-
D.
Downeaster route between Boston, Massachusetts and Maine
The Downeaster route between Boston, Massachusetts and Maine is an Amtrak passenger rail service connecting Boston with several cities in southern and coastal Maine via New Hampshire.
-
E.
Boston–Maine rail network
The Boston–Maine rail network was a regional railroad system in New England that connected major cities and towns, notably linking Boston with communities throughout Maine and neighboring states.
- 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_69d8278c43e08190824146f4632b89a5 |
completed | April 9, 2026, 10:26 p.m. |
| NER | Named-entity recognition | batch_69de6297f38c819090d7c7fd8bfa2e9e |
completed | April 14, 2026, 3:51 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fd325a14b881909522b6fbbcc6326f |
completed | May 8, 2026, 12:46 a.m. |
Created at: April 10, 2026, 1:09 a.m.