Triple
T6149190
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | SL1 |
E137153
|
entity |
| Predicate | connectsWith |
P37
|
FINISHED |
| Object |
MBTA Commuter Rail at South Station
MBTA Commuter Rail at South Station is the regional rail service hub in downtown Boston that provides commuter train connections between the city and surrounding suburbs and cities across Massachusetts and neighboring states.
|
E570980
|
NE FINISHED |
How this triple was built (4 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 at South Station | Statement: [SL1, connectsWith, MBTA Commuter Rail at South Station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MBTA Commuter Rail at South Station Context triple: [SL1, connectsWith, MBTA Commuter Rail at South Station]
-
A.
MBTA Silver Line at South Station
The MBTA Silver Line at South Station is a key Boston bus rapid transit hub providing underground and surface connections between South Station and destinations including the Seaport District and Logan Airport.
-
B.
Green Line at North Station
The Green Line at North Station is a major MBTA light rail stop in Boston that serves as a key transfer point between the Green Line trolleys and regional commuter rail services.
-
C.
Manchester station (MBTA)
Manchester station (MBTA) is a commuter rail stop on the Newburyport/Rockport Line serving the coastal town of Manchester-by-the-Sea, Massachusetts.
-
D.
Wellington Station (MBTA)
Wellington Station (MBTA) is an Orange Line rapid transit station in Medford, Massachusetts, serving as a key park-and-ride and bus transfer hub just north of downtown Boston.
-
E.
MBTA North Station
MBTA North Station is a major Boston transportation hub that serves as a key terminal for MBTA subway and commuter rail lines as well as Amtrak services.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: MBTA Commuter Rail at South Station Triple: [SL1, connectsWith, MBTA Commuter Rail at South Station]
Generated description
MBTA Commuter Rail at South Station is the regional rail service hub in downtown Boston that provides commuter train connections between the city and surrounding suburbs and cities across Massachusetts and neighboring states.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: MBTA Commuter Rail at South Station Target entity description: MBTA Commuter Rail at South Station is the regional rail service hub in downtown Boston that provides commuter train connections between the city and surrounding suburbs and cities across Massachusetts and neighboring states.
-
A.
MBTA Silver Line at South Station
The MBTA Silver Line at South Station is a key Boston bus rapid transit hub providing underground and surface connections between South Station and destinations including the Seaport District and Logan Airport.
-
B.
Green Line at North Station
The Green Line at North Station is a major MBTA light rail stop in Boston that serves as a key transfer point between the Green Line trolleys and regional commuter rail services.
-
C.
Manchester station (MBTA)
Manchester station (MBTA) is a commuter rail stop on the Newburyport/Rockport Line serving the coastal town of Manchester-by-the-Sea, Massachusetts.
-
D.
Wellington Station (MBTA)
Wellington Station (MBTA) is an Orange Line rapid transit station in Medford, Massachusetts, serving as a key park-and-ride and bus transfer hub just north of downtown Boston.
-
E.
MBTA North Station
MBTA North Station is a major Boston transportation hub that serves as a key terminal for MBTA subway and commuter rail lines as well as Amtrak services.
- F. None of above. chosen
Provenance (5 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_69c008a2c6308190a56519b22d55d083 |
completed | March 22, 2026, 3:20 p.m. |
| NER | Named-entity recognition | batch_69c05ce21820819096be9159d6b70a5f |
completed | March 22, 2026, 9:19 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c13608944481909e22df6131a06e41 |
completed | March 23, 2026, 12:46 p.m. |
| NEDg | Description generation | batch_69c13679dd58819099036d1119fa370b |
completed | March 23, 2026, 12:47 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69c1376db6a0819087c0d0aebc2e2b3e |
completed | March 23, 2026, 12:51 p.m. |
Created at: March 22, 2026, 4:16 p.m.