Triple
T639113
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Mattapan Trolley |
E16691
|
entity |
| Predicate | station |
P726
|
FINISHED |
| Object | Cedar Grove station |
E126815
|
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: Cedar Grove station | Statement: [Mattapan Trolley, station, Cedar Grove station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Cedar Grove station Context triple: [Mattapan Trolley, station, Cedar Grove station]
-
A.
Hunting Park station
Hunting Park station is a subway stop in North Philadelphia serving riders on SEPTA’s Broad Street Line.
-
B.
Willow Grove station
Willow Grove station is a SEPTA Regional Rail stop in Willow Grove, Pennsylvania, serving commuters on the Warminster Line to and from central Philadelphia.
-
C.
Valley Road station
chosen
Valley Road station is a small light rail stop on the MBTA's Mattapan trolley line in Milton, Massachusetts.
-
D.
Pattison Avenue station
Pattison Avenue station is a subway station in Philadelphia that serves as the southern terminus of SEPTA’s Broad Street Line, providing access to the South Philadelphia Sports Complex.
-
E.
Eisenhower Avenue station
Eisenhower Avenue station is a Washington Metro rapid transit stop serving the Yellow Line in Alexandria, Virginia, near the Eisenhower Avenue corridor and adjacent commercial and residential areas.
- 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_69a4936be1c88190af56540324b57da7 |
completed | March 1, 2026, 7:28 p.m. |
| NER | Named-entity recognition | batch_69a49f00260081909d1a679182e23d10 |
completed | March 1, 2026, 8:18 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ac5370a97881908916b387ff6b02af |
completed | March 7, 2026, 4:33 p.m. |
Created at: March 1, 2026, 7:35 p.m.