Triple
T9271022
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Lowell Line |
E222827
|
entity |
| Predicate | usesStation |
P726
|
FINISHED |
| Object |
Haverhill Line connection at Wilmington Junction
The Haverhill Line connection at Wilmington Junction is a rail junction in Massachusetts where MBTA commuter rail tracks from the Lowell Line link to the Haverhill Line, enabling route flexibility and service diversions.
|
E789074
|
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: Haverhill Line connection at Wilmington Junction | Statement: [Lowell Line, usesStation, Haverhill Line connection at Wilmington Junction]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Haverhill Line connection at Wilmington Junction Context triple: [Lowell Line, usesStation, Haverhill Line connection at Wilmington Junction]
-
A.
Thetford–Ely line
The Thetford–Ely line is a rural railway route in eastern England linking the towns of Thetford and Ely and serving intermediate stations such as Shippea Hill.
-
B.
Cambridge Line between Hitchin and Cambridge
The Cambridge Line between Hitchin and Cambridge is a key section of the rail network in eastern England, linking the East Coast Main Line to the city of Cambridge and serving both regional and long-distance passenger services.
-
C.
Northampton Loop Line
The Northampton Loop Line is a railway branch of the West Coast Main Line in England that diverts via Northampton, providing passenger and freight services between Rugby and Milton Keynes.
-
D.
Ipswich line
The Ipswich line is a suburban railway line in Brisbane, Queensland, connecting the city centre with the western suburbs and the city of Ipswich.
-
E.
Norwich–Lowestoft line
The Norwich–Lowestoft line is a regional railway route in East Anglia, England, connecting the city of Norwich with the coastal town of Lowestoft and serving communities across Norfolk and Suffolk.
- 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: Haverhill Line connection at Wilmington Junction Triple: [Lowell Line, usesStation, Haverhill Line connection at Wilmington Junction]
Generated description
The Haverhill Line connection at Wilmington Junction is a rail junction in Massachusetts where MBTA commuter rail tracks from the Lowell Line link to the Haverhill Line, enabling route flexibility and service diversions.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Haverhill Line connection at Wilmington Junction Target entity description: The Haverhill Line connection at Wilmington Junction is a rail junction in Massachusetts where MBTA commuter rail tracks from the Lowell Line link to the Haverhill Line, enabling route flexibility and service diversions.
-
A.
Thetford–Ely line
The Thetford–Ely line is a rural railway route in eastern England linking the towns of Thetford and Ely and serving intermediate stations such as Shippea Hill.
-
B.
Cambridge Line between Hitchin and Cambridge
The Cambridge Line between Hitchin and Cambridge is a key section of the rail network in eastern England, linking the East Coast Main Line to the city of Cambridge and serving both regional and long-distance passenger services.
-
C.
Northampton Loop Line
The Northampton Loop Line is a railway branch of the West Coast Main Line in England that diverts via Northampton, providing passenger and freight services between Rugby and Milton Keynes.
-
D.
Ipswich line
The Ipswich line is a suburban railway line in Brisbane, Queensland, connecting the city centre with the western suburbs and the city of Ipswich.
-
E.
Norwich–Lowestoft line
The Norwich–Lowestoft line is a regional railway route in East Anglia, England, connecting the city of Norwich with the coastal town of Lowestoft and serving communities across Norfolk and Suffolk.
- 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_69ca841ffe208190aa7bcffbef2f8379 |
completed | March 30, 2026, 2:09 p.m. |
| NER | Named-entity recognition | batch_69cd07865790819099b3865a25dae58a |
completed | April 1, 2026, 11:54 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d09c2ca500819083ef4aa37f3e3a7f |
completed | April 4, 2026, 5:05 a.m. |
| NEDg | Description generation | batch_69d09d5047e8819082dbb2e44547b41c |
completed | April 4, 2026, 5:10 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69d09dec544c819095e2109d5e1671d3 |
completed | April 4, 2026, 5:13 a.m. |
Created at: March 30, 2026, 7:33 p.m.