Triple
T6298544
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | SL4 |
E141191
|
entity |
| Predicate | hasRouteFamily |
P21451
|
FINISHED |
| Object | Silver Line Waterfront branches |
E575193
|
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: Silver Line Waterfront branches | Statement: [SL4, hasRouteFamily, Silver Line Waterfront branches]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Silver Line Waterfront branches Context triple: [SL4, hasRouteFamily, Silver Line Waterfront branches]
-
A.
Silver Line Waterfront branches
chosen
Silver Line Waterfront branches are a group of MBTA Silver Line bus rapid transit routes in Boston that serve the South Boston Waterfront and Seaport District.
-
B.
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.
-
C.
Braintree Branch of the Red Line
The Braintree Branch of the Red Line is a southern extension of Boston’s MBTA rapid transit system that runs from JFK/UMass through Quincy to Braintree, serving several South Shore communities.
-
D.
Green Line Union Square branch
The Green Line Union Square branch is a light rail extension of Boston’s MBTA Green Line that serves the Union Square area of Somerville, Massachusetts.
-
E.
Red Line Alewife branch
The Red Line Alewife branch is a segment of Boston's MBTA Red Line rapid transit system that runs through Cambridge and surrounding areas, terminating at Alewife station.
- 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_69c008cf0ad4819095def81e2bd42f9f |
completed | March 22, 2026, 3:20 p.m. |
| NER | Named-entity recognition | batch_69c0643ddaa48190b3ea8061fc1d9dc4 |
completed | March 22, 2026, 9:50 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c51993b8ec8190a0813d66851ac201 |
completed | March 26, 2026, 11:33 a.m. |
Created at: March 22, 2026, 4:27 p.m.