Triple
T6140849
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Melrose Highlands station |
E136955
|
entity |
| Predicate | code |
P1537
|
FINISHED |
| Object |
MBTA Melrose Highlands
MBTA Melrose Highlands is a commuter rail station on the Massachusetts Bay Transportation Authority’s Haverhill Line serving the Melrose Highlands neighborhood of Melrose, Massachusetts.
|
E620876
|
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 Melrose Highlands | Statement: [Melrose Highlands station, code, MBTA Melrose Highlands]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MBTA Melrose Highlands Context triple: [Melrose Highlands station, code, MBTA Melrose Highlands]
-
A.
MBTA Mattapan Line
The MBTA Mattapan Line is a light rail trolley service in the Boston area that operates historic streetcars between Ashmont Station and Mattapan, serving neighborhoods in Boston and Milton.
-
B.
MBTA Braintree Branch
The MBTA Braintree Branch is a southern extension of Boston’s Red Line rapid transit system that runs from JFK/UMass through several South Shore communities to Braintree.
-
C.
MBTA Lowell Line
The MBTA Lowell Line is a commuter rail service operated by the Massachusetts Bay Transportation Authority that runs between Boston’s North Station and Lowell, serving several communities in northern Massachusetts.
-
D.
MBTA Fairmount Line
The MBTA Fairmount Line is a commuter rail service in Boston, Massachusetts, connecting several neighborhoods in the city’s southern corridor to downtown.
-
E.
MBTA Needham Line
The MBTA Needham Line is a commuter rail route in the Greater Boston area that connects Boston’s South Station with the suburb of Needham, serving intermediate communities along the way.
- 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 Melrose Highlands Triple: [Melrose Highlands station, code, MBTA Melrose Highlands]
Generated description
MBTA Melrose Highlands is a commuter rail station on the Massachusetts Bay Transportation Authority’s Haverhill Line serving the Melrose Highlands neighborhood of Melrose, Massachusetts.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: MBTA Melrose Highlands Target entity description: MBTA Melrose Highlands is a commuter rail station on the Massachusetts Bay Transportation Authority’s Haverhill Line serving the Melrose Highlands neighborhood of Melrose, Massachusetts.
-
A.
MBTA Mattapan Line
The MBTA Mattapan Line is a light rail trolley service in the Boston area that operates historic streetcars between Ashmont Station and Mattapan, serving neighborhoods in Boston and Milton.
-
B.
MBTA Braintree Branch
The MBTA Braintree Branch is a southern extension of Boston’s Red Line rapid transit system that runs from JFK/UMass through several South Shore communities to Braintree.
-
C.
MBTA Lowell Line
The MBTA Lowell Line is a commuter rail service operated by the Massachusetts Bay Transportation Authority that runs between Boston’s North Station and Lowell, serving several communities in northern Massachusetts.
-
D.
MBTA Fairmount Line
The MBTA Fairmount Line is a commuter rail service in Boston, Massachusetts, connecting several neighborhoods in the city’s southern corridor to downtown.
-
E.
MBTA Needham Line
The MBTA Needham Line is a commuter rail route in the Greater Boston area that connects Boston’s South Station with the suburb of Needham, serving intermediate communities along the way.
- 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_69c008a179388190a3b5a081bbf46d55 |
completed | March 22, 2026, 3:20 p.m. |
| NER | Named-entity recognition | batch_69c05cb2404c8190bbbfa78d5f49389f |
completed | March 22, 2026, 9:18 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c723a7e26c8190bdd0dd476eac3492 |
completed | March 28, 2026, 12:41 a.m. |
| NEDg | Description generation | batch_69c7241cfde88190a6a085ec97a3707a |
completed | March 28, 2026, 12:43 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c7245b93f081909d3d88c9ca273b77 |
completed | March 28, 2026, 12:44 a.m. |
Created at: March 22, 2026, 4:16 p.m.