Triple
T2315638
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Embarcadero waterfront |
E51055
|
entity |
| Predicate | accessibleBy |
P1017
|
FINISHED |
| Object | historic F Market & Wharves streetcar line |
E54192
|
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: historic F Market & Wharves streetcar line | Statement: [Embarcadero waterfront, accessibleBy, historic F Market & Wharves streetcar line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: historic F Market & Wharves streetcar line Context triple: [Embarcadero waterfront, accessibleBy, historic F Market & Wharves streetcar line]
-
A.
historic streetcar F-line
The historic streetcar F-line is a popular San Francisco transit route that uses restored vintage streetcars to connect key areas of the city, including the Embarcadero and Market Street.
-
B.
Muni F-Market & Wharves line
chosen
The Muni F-Market & Wharves line is a historic streetcar route in San Francisco that runs along Market Street and the Embarcadero, connecting downtown with popular waterfront destinations.
-
C.
Muni Metro Market Street lines
Muni Metro Market Street lines are a set of light rail routes in San Francisco that run in a subway beneath Market Street, forming the core of the city’s urban rail transit corridor.
-
D.
Mattapan Trolley
The Mattapan Trolley is a historic light rail line in Boston that operates vintage PCC streetcars between Ashmont and Mattapan stations.
-
E.
Portland Streetcar
Portland Streetcar is a modern urban streetcar transit system serving central Portland, Oregon, connecting key neighborhoods, employment centers, and educational institutions.
- 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_69a88b074b908190ae983dbca7757d88 |
completed | March 4, 2026, 7:41 p.m. |
| NER | Named-entity recognition | batch_69abc61e72508190b335cda2c7fef130 |
completed | March 7, 2026, 6:30 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ae896236f08190b3874854279bbdf7 |
completed | March 9, 2026, 8:48 a.m. |
Created at: March 4, 2026, 7:49 p.m.