Triple
T18982052
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Dorchester Branch rail corridor |
E464451
|
entity |
| Predicate | partOf |
P40
|
FINISHED |
| Object | Greater Boston regional rail network |
—
|
NE NERFINISHED |
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: Greater Boston regional rail network | Statement: [Dorchester Branch rail corridor, partOf, Greater Boston regional rail network]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Greater Boston regional rail network Context triple: [Dorchester Branch rail corridor, partOf, Greater Boston regional rail network]
-
A.
Philadelphia commuter rail network
The Philadelphia commuter rail network is a regional passenger rail system serving the greater Philadelphia area, primarily operated by SEPTA and connecting the city with its surrounding suburbs.
-
B.
MBTA Commuter Rail network
chosen
The MBTA Commuter Rail network is a regional passenger rail system serving Greater Boston and surrounding communities in Massachusetts and parts of Rhode Island.
-
C.
Greater Boston parkway system
The Greater Boston parkway system is a network of scenic, historically planned roadways and parkways around Boston designed to connect urban areas with parks, beaches, and natural landscapes.
-
D.
MBTA park-and-ride network
The MBTA park-and-ride network is a system of parking facilities at transit stations that allows commuters to park their vehicles and transfer to Boston-area public transportation services.
-
E.
New England rail network
The New England rail network is the interconnected system of freight and passenger rail lines serving the six New England states, historically built by numerous regional railroads and still vital to the region’s transportation and economy.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69d8dd008af48190a97ff1c6488edf1b |
completed | April 10, 2026, 11:20 a.m. |
| NER | Named-entity recognition | batch_69e5d65d27548190b86d4c5f5b51d809 |
completed | April 20, 2026, 7:31 a.m. |
Created at: April 10, 2026, 12:01 p.m.