Triple
T14931508
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Belmont station (CTA North Side Main Line) |
E372275
|
entity |
| Predicate | rebuildProgram |
P26232
|
FINISHED |
| Object | Brown Line Capacity Expansion Project |
E892750
|
NE FINISHED |
How this triple was built (3 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: Brown Line Capacity Expansion Project | Statement: [Belmont station (CTA North Side Main Line), rebuildProgram, Brown Line Capacity Expansion Project]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Brown Line Capacity Expansion Project Context triple: [Belmont station (CTA North Side Main Line), rebuildProgram, Brown Line Capacity Expansion Project]
-
A.
Brown Line Capacity Expansion Project
chosen
The Brown Line Capacity Expansion Project was a major Chicago Transit Authority initiative to modernize and increase the capacity of the Brown Line, including station upgrades, platform extensions, and infrastructure improvements to accommodate longer trains and more riders.
-
B.
North Line extension of Red Line
The North Line extension of the Red Line is a METRORail light rail expansion in Houston that extends service north from downtown to additional neighborhoods and transit connections.
-
C.
Red Line Northwest Extension corridor
The Red Line Northwest Extension corridor is a planned expansion route of Boston's MBTA Red Line intended to extend rapid transit service northwest from its current terminus.
-
D.
Green Line Extension
The Green Line Extension is a Massachusetts Bay Transportation Authority light rail project that extends Boston’s Green Line service into previously unserved neighborhoods in Somerville and Medford.
-
E.
South Side elevated lines of Chicago
The South Side elevated lines of Chicago are a historic segment of the city’s rapid transit system serving Chicago’s South Side neighborhoods as part of the “L” network.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: rebuildProgram Context triple: [Belmont station (CTA North Side Main Line), rebuildProgram, Brown Line Capacity Expansion Project]
-
A.
reconstructionProgram
chosen
Indicates a program or initiative designed to rebuild, restore, or structurally improve something that has been damaged, degraded, or is otherwise in need of renewal.
-
B.
rebuild
Indicates restoring or constructing again something that was previously built, often after damage, destruction, or significant alteration.
-
C.
rebuiltUnder
Indicates that an entity was reconstructed or restored while being subject to the authority, control, or governance of another entity.
-
D.
rebuiltFor
Indicates that one entity has been reconstructed, renovated, or modified specifically to serve the needs, purposes, or use of another entity.
-
E.
majorRebuilder
Indicates that an entity plays a primary or leading role in reconstructing, restoring, or significantly rebuilding another entity.
- F. None of above.
Provenance (4 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_69d85cc9da0c81908d583ca3f63a3908 |
completed | April 10, 2026, 2:13 a.m. |
| NER | Named-entity recognition | batch_69ded64550dc8190ba44120df00ba498 |
completed | April 15, 2026, 12:05 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fe72c86b5c81909e601a3fc78276bd |
completed | May 8, 2026, 11:33 p.m. |
| PD | Predicate disambiguation | batch_69de9a52ba988190a26e268b4ea083ea |
completed | April 14, 2026, 7:49 p.m. |
Created at: April 10, 2026, 2:36 a.m.