Triple
T23432092
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | City Square station |
E563359
|
entity |
| Predicate | formerOperator |
P179
|
FINISHED |
| Object | Metropolitan Transit Authority (Boston) |
—
|
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: Metropolitan Transit Authority (Boston) | Statement: [City Square station, formerOperator, Metropolitan Transit Authority (Boston)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Metropolitan Transit Authority (Boston) Context triple: [City Square station, formerOperator, Metropolitan Transit Authority (Boston)]
-
A.
Montachusett Regional Transit Authority
Montachusett Regional Transit Authority is a public transportation agency serving the Montachusett region of north-central Massachusetts with bus and paratransit services.
-
B.
Merrimack Valley Regional Transit Authority
Merrimack Valley Regional Transit Authority is a public transportation agency that operates local bus and paratransit services in the Merrimack Valley region of northeastern Massachusetts.
-
C.
MBTA
chosen
The MBTA (Massachusetts Bay Transportation Authority) is the public transit agency that operates subway, bus, commuter rail, and ferry services in the Greater Boston area.
-
D.
MBTA
MBTA is a landmark U.S. federal law enacted in 1918 that protects migratory bird species by prohibiting their unauthorized capture, killing, or trade.
-
E.
Berkshire Regional Transit Authority
Berkshire Regional Transit Authority is a public transportation agency that provides bus and paratransit services to communities in Berkshire County, Massachusetts.
- 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_69e24553980c8190bb66a2ae0bdab125 |
completed | April 17, 2026, 2:36 p.m. |
| NER | Named-entity recognition | batch_69f1a5d920548190904f80c7c40cba06 |
completed | April 29, 2026, 6:31 a.m. |
Created at: April 17, 2026, 5:49 p.m.