Triple
T16633
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Malden River |
E330
|
entity |
| Predicate | hasBridge |
P386
|
FINISHED |
| Object | Wellington MBTA Orange Line bridge |
E16446
|
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: Wellington MBTA Orange Line bridge | Statement: [Malden River, hasBridge, Wellington MBTA Orange Line bridge]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Wellington MBTA Orange Line bridge Context triple: [Malden River, hasBridge, Wellington MBTA Orange Line bridge]
-
A.
MBTA Orange Line bridge near Wellington
chosen
The MBTA Orange Line bridge near Wellington is a rapid transit rail bridge in Medford, Massachusetts, carrying Orange Line trains across the Mystic River between Wellington and Assembly stations.
-
B.
Mystic River Bridge
The Mystic River Bridge, officially known as the Maurice J. Tobin Memorial Bridge, is a major steel cantilever roadway bridge in Boston, Massachusetts, carrying U.S. Route 1 over the Mystic River between Charlestown and Chelsea.
-
C.
Cape Cod Canal Railroad Bridge
The Cape Cod Canal Railroad Bridge is a historic vertical-lift railway bridge in Massachusetts that carries trains across the Cape Cod Canal and is notable for its impressive movable-span engineering.
-
D.
14th Street Bridge complex
The 14th Street Bridge complex is a group of highway and railway bridges over the Potomac River that serves as a major transportation link between Northern Virginia and Washington, D.C.
-
E.
Memorial Bridge
Memorial Bridge is a prominent ceremonial bridge spanning the Potomac River, symbolically linking Arlington National Cemetery with the Lincoln Memorial in Washington, D.C.
- 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_69a23d7ad88c8190bffe8ab091d86642 |
completed | Feb. 28, 2026, 12:57 a.m. |
| NER | Named-entity recognition | batch_69a2465c52d8819082bb02b8b539d6ab |
completed | Feb. 28, 2026, 1:35 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a2b8599e2c8190a593f2c00e293f9d |
completed | Feb. 28, 2026, 9:41 a.m. |
Created at: Feb. 28, 2026, 1:02 a.m.