Triple
T16232683
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Melrose Cedar Park station |
E394023
|
entity |
| Predicate | hasAbbreviation |
P43
|
FINISHED |
| Object |
MBTA Melrose Cedar Park
MBTA Melrose Cedar Park is a commuter rail station in Melrose, Massachusetts, served by the Massachusetts Bay Transportation Authority’s Haverhill Line.
|
E1200664
|
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 Cedar Park | Statement: [Melrose Cedar Park station, hasAbbreviation, MBTA Melrose Cedar Park]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MBTA Melrose Cedar Park Context triple: [Melrose Cedar Park station, hasAbbreviation, MBTA Melrose Cedar Park]
-
A.
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.
-
B.
MBTA Ashmont Branch
The MBTA Ashmont Branch is a rapid transit line of Boston’s Red Line that runs from JFK/UMass station through Dorchester to Ashmont, serving several southern neighborhoods of the city.
-
C.
MBTA Franklin Branch
The MBTA Franklin Branch is a commuter rail corridor in Massachusetts that carries Franklin Line trains between Boston and the southwestern suburbs.
-
D.
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.
-
E.
MBTA Lansdowne
MBTA Lansdowne is a commuter rail station in Boston, Massachusetts, serving the Framingham/Worcester Line near Fenway Park.
- 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 Cedar Park Triple: [Melrose Cedar Park station, hasAbbreviation, MBTA Melrose Cedar Park]
Generated description
MBTA Melrose Cedar Park is a commuter rail station in Melrose, Massachusetts, served by the Massachusetts Bay Transportation Authority’s Haverhill Line.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: MBTA Melrose Cedar Park Target entity description: MBTA Melrose Cedar Park is a commuter rail station in Melrose, Massachusetts, served by the Massachusetts Bay Transportation Authority’s Haverhill Line.
-
A.
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.
-
B.
MBTA Ashmont Branch
The MBTA Ashmont Branch is a rapid transit line of Boston’s Red Line that runs from JFK/UMass station through Dorchester to Ashmont, serving several southern neighborhoods of the city.
-
C.
MBTA Franklin Branch
The MBTA Franklin Branch is a commuter rail corridor in Massachusetts that carries Franklin Line trains between Boston and the southwestern suburbs.
-
D.
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.
-
E.
MBTA Lansdowne
MBTA Lansdowne is a commuter rail station in Boston, Massachusetts, serving the Framingham/Worcester Line near Fenway Park.
- 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_69d87f204df88190a8f88923decf9835 |
completed | April 10, 2026, 4:40 a.m. |
| NER | Named-entity recognition | batch_69e23d2b0cc48190853919135d5a172a |
completed | April 17, 2026, 2:01 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a0007a0ab08819082aea4c312c9ffc7 |
completed | May 10, 2026, 4:20 a.m. |
| NEDg | Description generation | batch_6a00098ea3e48190b0744f1eafab9ce2 |
completed | May 10, 2026, 4:29 a.m. |
| NED2 | Entity disambiguation (via description) | batch_6a0009fb40a48190b82f6de80226d306 |
completed | May 10, 2026, 4:30 a.m. |
Created at: April 10, 2026, 5:04 a.m.