Triple
T21717237
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | CR (historical) |
E536060
|
entity |
| Predicate | underlyingCompanyParentAfterSplit |
P5441
|
FINISHED |
| Object | Conrail Inc. |
—
|
NE NERFINISHED |
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: Conrail Inc. | Statement: [CR (historical), underlyingCompanyParentAfterSplit, Conrail Inc.]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Conrail Inc. Context triple: [CR (historical), underlyingCompanyParentAfterSplit, Conrail Inc.]
-
A.
Conrail
Conrail was a major U.S. freight railroad formed in the 1970s to take over and revitalize the operations of several bankrupt Northeastern railroads.
-
B.
Pan Am Railways
Pan Am Railways was a regional freight railroad in New England, formerly known as Guilford Rail System, that operated an extensive network across the northeastern United States.
-
C.
Consolidated Rail Corporation
chosen
Consolidated Rail Corporation, commonly known as Conrail, was a major U.S. freight railroad created in the 1970s to take over and revitalize the operations of several bankrupt Northeastern railroads.
-
D.
Norfolk Southern Railway
Norfolk Southern Railway is a major U.S. freight railroad company operating an extensive rail network across the eastern United States.
-
E.
BNSF Railway
BNSF Railway is one of the largest freight railroad networks in North America, operating an extensive system that spans the United States and parts of Canada and Mexico.
- 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: underlyingCompanyParentAfterSplit Context triple: [CR (historical), underlyingCompanyParentAfterSplit, Conrail Inc.]
-
A.
underlyingCompanyParent
Indicates that one company serves as the parent or controlling entity of another company that underlies or supports a given structure, arrangement, or instrument.
-
B.
parentCompanyAfterMerger
Indicates that one company is the resulting parent company of another following a merger.
-
C.
underlyingCompanyPredecessor
Indicates that one company served as a predecessor entity to another company in an underlying or foundational corporate relationship.
-
D.
laterParentCompany
chosen
Indicates that one entity became the parent company of another entity at a later point in time, after some prior state or relationship.
-
E.
underlyingCompanyFormedBy
Indicates that an underlying company was created, established, or formed by a specified entity.
- F. None of above.
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_69e0c46c6dd88190a595375fa6ebd701 |
completed | April 16, 2026, 11:13 a.m. |
| NER | Named-entity recognition | batch_69efd96babdc81908226ec043dbe7431 |
completed | April 27, 2026, 9:47 p.m. |
| PD | Predicate disambiguation | batch_69e6969725bc81908e7ad19619ba2688 |
completed | April 20, 2026, 9:11 p.m. |
Created at: April 16, 2026, 6:47 p.m.