Triple
T19502337
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | The Port |
E487934
|
entity |
| Predicate | transportationAccess |
P941
|
FINISHED |
| Object | MBTA Red Line at Central Square |
—
|
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 Red Line at Central Square | Statement: [The Port, transportationAccess, MBTA Red Line at Central Square]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MBTA Red Line at Central Square Context triple: [The Port, transportationAccess, MBTA Red Line at Central Square]
-
A.
MBTA Red Line at Downtown Crossing
The MBTA Red Line at Downtown Crossing is a major rapid transit station in Boston’s downtown core that serves as a key transfer point between the Red and Orange subway lines and provides access to nearby commercial and historic districts.
-
B.
MBTA Green Line at Government Center
The MBTA Green Line at Government Center is a major light rail subway station in downtown Boston that serves as a key transfer point and access hub for nearby civic and historic landmarks.
-
C.
MBTA Blue Line at Government Center
MBTA Blue Line at Government Center is an underground rapid transit station in downtown Boston that serves the Blue Line and provides a key transfer point to the Green Line.
-
D.
MBTA Red Line at South Station
The MBTA Red Line at South Station is a major rapid transit stop in downtown Boston that serves as a key hub for subway, commuter rail, intercity rail, and bus connections.
-
E.
MBTA Red Line at Harvard station
The MBTA Red Line at Harvard station is a key rapid transit stop in Cambridge, Massachusetts, serving Harvard Square and Harvard University as part of Boston’s primary subway network.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: MBTA Red Line at Central Square Target entity description: The MBTA Red Line at Central Square is a rapid transit station in Cambridge, Massachusetts, serving as a key subway stop connecting the Central Square neighborhood to Boston and the greater metro area.
-
A.
MBTA Red Line at Downtown Crossing
The MBTA Red Line at Downtown Crossing is a major rapid transit station in Boston’s downtown core that serves as a key transfer point between the Red and Orange subway lines and provides access to nearby commercial and historic districts.
-
B.
MBTA Green Line at Government Center
The MBTA Green Line at Government Center is a major light rail subway station in downtown Boston that serves as a key transfer point and access hub for nearby civic and historic landmarks.
-
C.
MBTA Blue Line at Government Center
MBTA Blue Line at Government Center is an underground rapid transit station in downtown Boston that serves the Blue Line and provides a key transfer point to the Green Line.
-
D.
MBTA Red Line at South Station
The MBTA Red Line at South Station is a major rapid transit stop in downtown Boston that serves as a key hub for subway, commuter rail, intercity rail, and bus connections.
-
E.
MBTA Red Line at Harvard station
The MBTA Red Line at Harvard station is a key rapid transit stop in Cambridge, Massachusetts, serving Harvard Square and Harvard University as part of Boston’s primary subway network.
- F. None of above. chosen
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_69d8e8d9d1c88190b01cd78b8be49384 |
completed | April 10, 2026, 12:11 p.m. |
| NER | Named-entity recognition | batch_69e6350dbae08190bea7fc3e3eb95c3c |
completed | April 20, 2026, 2:15 p.m. |
Created at: April 10, 2026, 1:40 p.m.