Triple
T3424407
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MBTA Commuter Rail Middleborough/Lakeville Line |
E72192
|
entity |
| Predicate | usesStation |
P726
|
FINISHED |
| Object |
Middleborough/Lakeville station
Middleborough/Lakeville station is a Massachusetts Bay Transportation Authority commuter rail stop in southeastern Massachusetts serving as a key terminus for riders traveling between the South Shore region and Boston.
|
E358016
|
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: Middleborough/Lakeville station | Statement: [MBTA Commuter Rail Middleborough/Lakeville Line, usesStation, Middleborough/Lakeville station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Middleborough/Lakeville station Context triple: [MBTA Commuter Rail Middleborough/Lakeville Line, usesStation, Middleborough/Lakeville station]
-
A.
Readville station
Readville station is a Massachusetts Bay Transportation Authority commuter rail stop serving the Readville neighborhood in Boston’s Hyde Park area.
-
B.
Malden Center station
Malden Center station is a major transit hub in Malden, Massachusetts, serving both MBTA Orange Line subway and commuter rail services.
-
C.
Framingham station
Framingham station is a commuter rail station in Framingham, Massachusetts, serving MBTA and Amtrak trains on the Worcester Line west of Boston.
-
D.
Fitchburg station
Fitchburg station is a commuter rail stop in Fitchburg, Massachusetts, serving as a terminus on the MBTA Fitchburg Line connecting the city to the Greater Boston area.
-
E.
Andover station
Andover station is a commuter rail stop in Andover, Massachusetts, served by the MBTA on its route between Boston and Haverhill.
- 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: Middleborough/Lakeville station Triple: [MBTA Commuter Rail Middleborough/Lakeville Line, usesStation, Middleborough/Lakeville station]
Generated description
Middleborough/Lakeville station is a Massachusetts Bay Transportation Authority commuter rail stop in southeastern Massachusetts serving as a key terminus for riders traveling between the South Shore region and Boston.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Middleborough/Lakeville station Target entity description: Middleborough/Lakeville station is a Massachusetts Bay Transportation Authority commuter rail stop in southeastern Massachusetts serving as a key terminus for riders traveling between the South Shore region and Boston.
-
A.
Readville station
Readville station is a Massachusetts Bay Transportation Authority commuter rail stop serving the Readville neighborhood in Boston’s Hyde Park area.
-
B.
Malden Center station
Malden Center station is a major transit hub in Malden, Massachusetts, serving both MBTA Orange Line subway and commuter rail services.
-
C.
Framingham station
Framingham station is a commuter rail station in Framingham, Massachusetts, serving MBTA and Amtrak trains on the Worcester Line west of Boston.
-
D.
Fitchburg station
Fitchburg station is a commuter rail stop in Fitchburg, Massachusetts, serving as a terminus on the MBTA Fitchburg Line connecting the city to the Greater Boston area.
-
E.
Andover station
Andover station is a commuter rail stop in Andover, Massachusetts, served by the MBTA on its route between Boston and Haverhill.
- 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_69ad85ae14308190bcbc25cfa0246c0b |
completed | March 8, 2026, 2:20 p.m. |
| NER | Named-entity recognition | batch_69adb97fa2d88190a79cb8c7be4b3696 |
completed | March 8, 2026, 6:01 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b3547468b8819088e7c4cf3b2e2079 |
completed | March 13, 2026, 12:04 a.m. |
| NEDg | Description generation | batch_69b35519b7f08190b1ea7514036c3453 |
completed | March 13, 2026, 12:06 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69b358fba2208190bc66d5f7d0009ba4 |
completed | March 13, 2026, 12:23 a.m. |
Created at: March 8, 2026, 3:15 p.m.