Triple
T21367130
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MBTA Mattapan Line |
E526945
|
entity |
| Predicate | station |
P726
|
FINISHED |
| Object | Cedar Grove |
—
|
NE NERFINISHED |
How this triple was built (3 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: Cedar Grove | Statement: [MBTA Mattapan Line, station, Cedar Grove]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Cedar Grove Context triple: [MBTA Mattapan Line, station, Cedar Grove]
-
A.
Cedar Grove
Cedar Grove is the name of several small unincorporated communities and localities in the U.S. state of Missouri.
-
B.
Cedar Grove
Cedar Grove is a scenic glacially carved valley in California’s Sierra Nevada, known for its towering granite cliffs, lush forests, and access to hiking and river recreation within Kings Canyon National Park.
-
C.
Cedar Grove
Cedar Grove is a small unincorporated community located within Hamblen County in the state of Tennessee.
-
D.
Cedar Grove
Cedar Grove is a residential neighborhood in New Jersey served by NJ Transit's Butler rail station.
-
E.
Cedar Grove Park
Cedar Grove Park is a public recreational park in Essex County, New Jersey, offering open green spaces, walking paths, and community amenities within the county’s park system.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Cedar Grove Target entity description: Cedar Grove is a light rail stop on Boston's MBTA Mattapan Line serving the Cedar Grove neighborhood in Dorchester.
-
A.
Cedar Grove
Cedar Grove is a scenic glacially carved valley in California’s Sierra Nevada, known for its towering granite cliffs, lush forests, and access to hiking and river recreation within Kings Canyon National Park.
-
B.
Cedar Grove
Cedar Grove is a residential neighborhood in New Jersey served by NJ Transit's Butler rail station.
-
C.
Cedar Grove
Cedar Grove is the name of several small unincorporated communities and localities in the U.S. state of Missouri.
-
D.
Cedar Grove
Cedar Grove is a small unincorporated community located within Hamblen County in the state of Tennessee.
-
E.
Cedar Grove Park
Cedar Grove Park is a public recreational park in Essex County, New Jersey, offering open green spaces, walking paths, and community amenities within the county’s park system.
- F. None of above. chosen
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_69e0b51e80808190ba5cb05667af02a9 |
completed | April 16, 2026, 10:08 a.m. |
| NER | Named-entity recognition | batch_69ee5bae5eb88190be6d9ff4dc03d52b |
completed | April 26, 2026, 6:38 p.m. |
Created at: April 16, 2026, 5:09 p.m.