Triple
T2989966
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Billerica, Massachusetts |
E80724
|
entity |
| Predicate | hasCommuterRailStation |
P105
|
FINISHED |
| Object |
North Billerica station
North Billerica station is a Massachusetts Bay Transportation Authority (MBTA) commuter rail stop in Billerica, Massachusetts, serving the Lowell Line between Boston and Lowell.
|
E334713
|
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: North Billerica station | Statement: [Billerica, Massachusetts, hasCommuterRailStation, North Billerica station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: North Billerica station Context triple: [Billerica, Massachusetts, hasCommuterRailStation, North Billerica station]
-
A.
North Leominster station
North Leominster station is a commuter rail stop in Leominster, Massachusetts, serving the MBTA Fitchburg Line that connects the area to Boston and other regional destinations.
-
B.
Newtonville station
Newtonville station is a commuter rail stop on the MBTA Framingham/Worcester Line serving the Newtonville neighborhood of Newton, Massachusetts.
-
C.
Readville station
Readville station is a Massachusetts Bay Transportation Authority commuter rail stop serving the Readville neighborhood in Boston’s Hyde Park area.
-
D.
Medford/Tufts station
Medford/Tufts station is a Massachusetts Bay Transportation Authority light rail station in Medford serving Tufts University and the surrounding area.
-
E.
Malden Center station
Malden Center station is a major transit hub in Malden, Massachusetts, serving both MBTA Orange Line subway and commuter rail 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: North Billerica station Triple: [Billerica, Massachusetts, hasCommuterRailStation, North Billerica station]
Generated description
North Billerica station is a Massachusetts Bay Transportation Authority (MBTA) commuter rail stop in Billerica, Massachusetts, serving the Lowell Line between Boston and Lowell.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: North Billerica station Target entity description: North Billerica station is a Massachusetts Bay Transportation Authority (MBTA) commuter rail stop in Billerica, Massachusetts, serving the Lowell Line between Boston and Lowell.
-
A.
North Leominster station
North Leominster station is a commuter rail stop in Leominster, Massachusetts, serving the MBTA Fitchburg Line that connects the area to Boston and other regional destinations.
-
B.
Newtonville station
Newtonville station is a commuter rail stop on the MBTA Framingham/Worcester Line serving the Newtonville neighborhood of Newton, Massachusetts.
-
C.
Readville station
Readville station is a Massachusetts Bay Transportation Authority commuter rail stop serving the Readville neighborhood in Boston’s Hyde Park area.
-
D.
Medford/Tufts station
Medford/Tufts station is a Massachusetts Bay Transportation Authority light rail station in Medford serving Tufts University and the surrounding area.
-
E.
Malden Center station
Malden Center station is a major transit hub in Malden, Massachusetts, serving both MBTA Orange Line subway and commuter rail 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_69ad8b16c3488190b47b6aa7a59a335b |
completed | March 8, 2026, 2:43 p.m. |
| NER | Named-entity recognition | batch_69ad99dcdb00819092ca5f10396408e0 |
completed | March 8, 2026, 3:46 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b23592a4888190a78fcae60f4971dd |
completed | March 12, 2026, 3:40 a.m. |
| NEDg | Description generation | batch_69b2395546948190bb9b972138324f2e |
completed | March 12, 2026, 3:56 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69b23d1fd35c819096f2dd6f26ea697d |
completed | March 12, 2026, 4:12 a.m. |
Created at: March 8, 2026, 2:59 p.m.