Triple
T23173574
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Paint Creek Trail |
E578930
|
entity |
| Predicate | usesFormerRailCorridorOf |
P14629
|
FINISHED |
| Object | Pennsylvania Railroad |
—
|
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: Pennsylvania Railroad | Statement: [Paint Creek Trail, usesFormerRailCorridorOf, Pennsylvania Railroad]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Pennsylvania Railroad Context triple: [Paint Creek Trail, usesFormerRailCorridorOf, Pennsylvania Railroad]
-
A.
Pennsylvania Railroad Company
chosen
The Pennsylvania Railroad Company was one of the largest and most influential American railroads of the 19th and early 20th centuries, playing a central role in the industrial development of the United States.
-
B.
Philadelphia and Reading Railroad
The Philadelphia and Reading Railroad was a major 19th- and early 20th-century American railroad and coal-transporting line centered in Pennsylvania, later known as part of the Reading Company system.
-
C.
Philadelphia and Western Railroad
The Philadelphia and Western Railroad was an early 20th-century interurban railway in the Philadelphia region that later evolved into what is now known as the Norristown High Speed Line.
-
D.
Lehigh Valley Railroad
Lehigh Valley Railroad was a major northeastern U.S. railroad that primarily served the anthracite coal region of Pennsylvania and connected it to key industrial and port cities.
-
E.
Erie Railroad
The Erie Railroad was a major 19th- and early 20th-century American railroad that operated extensive passenger and freight services across the northeastern United States, particularly linking New York City with the Midwest.
- 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: usesFormerRailCorridorOf Context triple: [Paint Creek Trail, usesFormerRailCorridorOf, Pennsylvania Railroad]
-
A.
formerRailroadCorridor
Indicates that a location or route once served as a railroad corridor but is no longer used for active rail service.
-
B.
followsFormerRailroad
chosen
Indicates that something is aligned with or traces the route of a former railroad line.
-
C.
formerRailwayLine
Indicates that a railway line previously existed in the past but is no longer in operation or has been decommissioned.
-
D.
formerRailroad
Indicates that an entity was previously a railroad but no longer functions as one.
-
E.
formerRailUse
Indicates that an entity previously served a particular railway-related function or purpose, but no longer does so.
- 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_69e245fd2a388190b814c0dfa15f7148 |
completed | April 17, 2026, 2:38 p.m. |
| NER | Named-entity recognition | batch_69f18f31f70081909c977d4e43678a9f |
completed | April 29, 2026, 4:55 a.m. |
| PD | Predicate disambiguation | batch_69ef89ff76808190808ee4ad9dea776b |
completed | April 27, 2026, 4:08 p.m. |
Created at: April 17, 2026, 4:04 p.m.