Triple
T1769561
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Fitchburg |
E38842
|
entity |
| Predicate | hasRailStation |
P726
|
FINISHED |
| Object |
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.
|
E258141
|
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: Fitchburg station | Statement: [Fitchburg, hasRailStation, Fitchburg station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Fitchburg station Context triple: [Fitchburg, hasRailStation, Fitchburg station]
-
A.
Andover station
Andover station is a commuter rail stop in Andover, Massachusetts, served by the MBTA on its route between Boston and Haverhill.
-
B.
Medford station
Medford station is a Long Island Rail Road commuter rail stop located in Medford, New York, serving passengers on the Ronkonkoma Branch.
-
C.
Newtonville station
Newtonville station is a commuter rail stop on the MBTA Framingham/Worcester Line serving the Newtonville neighborhood of Newton, Massachusetts.
-
D.
Malden Center station
Malden Center station is a major transit hub in Malden, Massachusetts, serving both MBTA Orange Line subway and commuter rail services.
-
E.
Porter station
Porter station is a major MBTA transit hub in Cambridge, Massachusetts, serving both Red Line subway and commuter rail trains beneath Porter Square.
- 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: Fitchburg station Triple: [Fitchburg, hasRailStation, Fitchburg station]
Generated description
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.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Fitchburg station Target entity description: 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.
-
A.
Andover station
Andover station is a commuter rail stop in Andover, Massachusetts, served by the MBTA on its route between Boston and Haverhill.
-
B.
Medford station
Medford station is a Long Island Rail Road commuter rail stop located in Medford, New York, serving passengers on the Ronkonkoma Branch.
-
C.
Newtonville station
Newtonville station is a commuter rail stop on the MBTA Framingham/Worcester Line serving the Newtonville neighborhood of Newton, Massachusetts.
-
D.
Malden Center station
Malden Center station is a major transit hub in Malden, Massachusetts, serving both MBTA Orange Line subway and commuter rail services.
-
E.
Porter station
Porter station is a major MBTA transit hub in Cambridge, Massachusetts, serving both Red Line subway and commuter rail trains beneath Porter Square.
- 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_69a8862e61708190af97b9838cc3f5de |
completed | March 4, 2026, 7:21 p.m. |
| NER | Named-entity recognition | batch_69aa648eb9488190b1be2d2b6d259634 |
completed | March 6, 2026, 5:22 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ae95e04dc88190902f2ae5ae856b20 |
completed | March 9, 2026, 9:41 a.m. |
| NEDg | Description generation | batch_69ae96b399608190bfa846c433612142 |
completed | March 9, 2026, 9:45 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69ae977aac9c8190b5fecd5fea8893fd |
completed | March 9, 2026, 9:48 a.m. |
Created at: March 4, 2026, 7:31 p.m.