Triple
T23378372
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | SEPTA Regional Rail Center City Commuter Tunnel |
E593667
|
entity |
| Predicate | alsoKnownAs |
P39
|
FINISHED |
| Object | Center City Commuter Tunnel |
—
|
NE NERFINISHED |
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: Center City Commuter Tunnel | Statement: [SEPTA Regional Rail Center City Commuter Tunnel, alsoKnownAs, Center City Commuter Tunnel]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Center City Commuter Tunnel Context triple: [SEPTA Regional Rail Center City Commuter Tunnel, alsoKnownAs, Center City Commuter Tunnel]
-
A.
Center City Tunnel
chosen
Center City Tunnel is an underground rail corridor in downtown Philadelphia that links several major commuter rail lines to create a unified through-running system.
-
B.
Johnson Tunnel
The Johnson Tunnel, more commonly known as the Eisenhower–Johnson Memorial Tunnel, is a major highway tunnel carrying Interstate 70 under the Continental Divide in Colorado, significantly improving year-round travel across the Rocky Mountains.
-
C.
Midtown Tunnel
The Midtown Tunnel is a vehicular tunnel in the Hampton Roads region that carries traffic beneath the Elizabeth River between Norfolk and Portsmouth, Virginia.
-
D.
Broadway Tunnel
The Broadway Tunnel is a vehicular tunnel in San Francisco that carries traffic beneath Russian Hill, connecting the city's Chinatown and North Beach neighborhoods.
-
E.
Beacon Hill tunnel
Beacon Hill tunnel is an underground light rail tunnel in Seattle, Washington, carrying Sound Transit’s Link light rail beneath the Beacon Hill neighborhood.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69e25d268a50819095f2fd479da8ef3f |
completed | April 17, 2026, 4:17 p.m. |
| NER | Named-entity recognition | batch_69f1a3b526ec8190b0304c72a9010abb |
completed | April 29, 2026, 6:22 a.m. |
Created at: April 17, 2026, 5:33 p.m.