Triple
T14433746
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MBTA Commuter Rail at Braintree |
E357900
|
entity |
| Predicate | hasStationCode |
P1289
|
FINISHED |
| Object | Braintree (MBTA Commuter Rail) |
E37388
|
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: Braintree (MBTA Commuter Rail) | Statement: [MBTA Commuter Rail at Braintree, hasStationCode, Braintree (MBTA Commuter Rail)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Braintree (MBTA Commuter Rail) Context triple: [MBTA Commuter Rail at Braintree, hasStationCode, Braintree (MBTA Commuter Rail)]
-
A.
MBTA Commuter Rail at Braintree
MBTA Commuter Rail at Braintree is a regional rail station in Braintree, Massachusetts, serving as a key stop on the MBTA’s commuter rail network that links the South Shore suburbs with downtown Boston.
-
B.
Braintree station
chosen
Braintree station is a Massachusetts Bay Transportation Authority (MBTA) rapid transit and commuter rail station in Braintree, Massachusetts, serving as a major park-and-ride hub on Boston’s South Shore.
-
C.
Manchester station (MBTA)
Manchester station (MBTA) is a commuter rail stop on the Newburyport/Rockport Line serving the coastal town of Manchester-by-the-Sea, Massachusetts.
-
D.
Red Line Braintree Branch
The Red Line Braintree Branch is a southern extension of Boston's MBTA Red Line rapid transit system that serves communities between Quincy and Braintree.
-
E.
Littleton/Route 495 station
Littleton/Route 495 station is a Massachusetts Bay Transportation Authority commuter rail stop in Littleton, Massachusetts, serving the Fitchburg Line near Interstate 495.
- 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_69d8279402a88190821ffa39ae15bccf |
completed | April 9, 2026, 10:26 p.m. |
| NER | Named-entity recognition | batch_69de91471a648190adb7b283a6a85c3e |
completed | April 14, 2026, 7:11 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fd5bd5b1d08190a89e6f004a94b361 |
completed | May 8, 2026, 3:43 a.m. |
Created at: April 10, 2026, 1:18 a.m.