Triple
T13651262
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Ball Square station |
E326740
|
entity |
| Predicate | isOnCorridor |
P1018
|
FINISHED |
| Object | Lowell Line corridor |
E222827
|
NE FINISHED |
How this triple was built (2 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: Lowell Line corridor | Statement: [Ball Square station, isOnCorridor, Lowell Line corridor]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Lowell Line corridor Context triple: [Ball Square station, isOnCorridor, Lowell Line corridor]
-
A.
Lowell Line
chosen
The Lowell Line is a Massachusetts Bay Transportation Authority commuter rail route that runs between Boston’s North Station and the city of Lowell, serving communities in the Merrimack Valley.
-
B.
Green Line West Branch
The Green Line West Branch is a segment of Chicago's 'L' rapid transit system that carries Green Line trains between Harlem/Lake and Ashland/63rd on the city's West Side.
-
C.
Old Colony main line
The Old Colony main line was a historic New England railroad route that formed the core of the Old Colony Railroad network in southeastern Massachusetts, later serving as the basis for modern MBTA commuter rail service in the region.
-
D.
Dorchester Branch rail corridor
The Dorchester Branch rail corridor is a commuter rail line in Boston, Massachusetts, that runs through the Dorchester neighborhood and connects several local stations to the broader regional rail network.
-
E.
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.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69d8076d8270819092afc2f0e9c359a8 |
completed | April 9, 2026, 8:09 p.m. |
| NER | Named-entity recognition | batch_69dbc609676c8190b5b1cabe6b315142 |
completed | April 12, 2026, 4:19 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f78affa3c481909dba71e2ce9f44c1 |
completed | May 3, 2026, 5:50 p.m. |
Created at: April 9, 2026, 9:52 p.m.