Triple
T21577984
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Transportation in Middlesex County, Massachusetts |
E532448
|
entity |
| Predicate | containsFacility |
P12416
|
FINISHED |
| Object | Lechmere Station |
—
|
NE NERFINISHED |
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: Lechmere Station | Statement: [Transportation in Middlesex County, Massachusetts, containsFacility, Lechmere Station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Lechmere Station Context triple: [Transportation in Middlesex County, Massachusetts, containsFacility, Lechmere Station]
-
A.
Lechmere station
chosen
Lechmere station is a Massachusetts Bay Transportation Authority (MBTA) Green Line light rail station serving the East Cambridge neighborhood of Cambridge, Massachusetts.
-
B.
Lawrence Station
Lawrence Station is a Caltrain commuter rail station in Sunnyvale, California, serving passengers along the San Francisco Peninsula rail corridor.
-
C.
Kipling station
Kipling station is a major western transit hub in Toronto that connects the subway system with regional buses and commuter services.
-
D.
Caledonia station
Caledonia station is a public transit stop in Toronto, Ontario, serving the Briar Hill–Belgravia neighborhood as part of the city's subway and light rail network.
-
E.
Lawrence station
Lawrence station is a commuter rail stop in Lawrence, New York, serving passengers on the Long Island Rail Road’s Far Rockaway Branch.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69e0c4618bec8190bcb0feb74568cbb1 |
completed | April 16, 2026, 11:13 a.m. |
| NER | Named-entity recognition | batch_69eeeb59cee08190aae55ad6e2a4e077 |
completed | April 27, 2026, 4:51 a.m. |
Created at: April 16, 2026, 6:31 p.m.