Triple
T23051429
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Amtrak at South Station |
E574023
|
entity |
| Predicate | sharesStationWith |
P61736
|
FINISHED |
| Object | MBTA Commuter Rail |
—
|
NE NERFINISHED |
How this triple was built (3 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: MBTA Commuter Rail | Statement: [Amtrak at South Station, sharesStationWith, MBTA Commuter Rail]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MBTA Commuter Rail Context triple: [Amtrak at South Station, sharesStationWith, MBTA Commuter Rail]
-
A.
MBTA Commuter Rail network
chosen
The MBTA Commuter Rail network is a regional passenger rail system serving Greater Boston and surrounding communities in Massachusetts and parts of Rhode Island.
-
B.
MBTA Commuter Rail Old Colony Lines
The MBTA Commuter Rail Old Colony Lines are a set of commuter rail routes in eastern Massachusetts that provide service between Boston and communities along the historic Old Colony Railroad corridors, including the South Shore and parts of southeastern Massachusetts.
-
C.
MBTA
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.
MBTA Commuter Rail Greenbush Line
The MBTA Commuter Rail Greenbush Line is a Massachusetts Bay Transportation Authority commuter rail route connecting Boston’s South Station with coastal South Shore communities, including towns such as Hingham, Cohasset, and Scituate.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: sharesStationWith Context triple: [Amtrak at South Station, sharesStationWith, MBTA Commuter Rail]
-
A.
sharesStationsWith
chosen
Indicates that two transit routes or lines have one or more stations or stops in common along their paths.
-
B.
sharesMusicWith
Indicates that one entity provides or exchanges music with another entity.
-
C.
sharesRecordWith
Indicates that two entities have at least one record or data entry in common, or are both associated with the same record.
-
D.
sharesSystemWith
Indicates that two entities operate within or are associated with the same overarching system or environment.
-
E.
sharesUniverseWith
Indicates that two entities exist within the same fictional or narrative universe, implying shared continuity, setting, or canon.
- F. None of above.
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_69e245ba7ae48190be606dbc54120e39 |
completed | April 17, 2026, 2:37 p.m. |
| NER | Named-entity recognition | batch_69f1867d010c8190bc5dba6758d0b797 |
completed | April 29, 2026, 4:18 a.m. |
| PD | Predicate disambiguation | batch_69ef89d5f71881908b9f9d0c8aab278c |
completed | April 27, 2026, 4:07 p.m. |
Created at: April 17, 2026, 3:54 p.m.