Triple
T609466
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | K4s Pacific |
E12064
|
entity |
| Predicate | succeededByClass |
P10131
|
FINISHED |
| Object |
PRR T1
The PRR T1 was a class of streamlined 4-4-4-4 duplex steam locomotives built for the Pennsylvania Railroad in the 1940s, known for their high-speed passenger service and distinctive Art Deco styling.
|
E77221
|
NE FINISHED |
How this triple was built (4 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: PRR T1 | Statement: [K4s Pacific, succeededByClass, PRR T1]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: PRR T1 Context triple: [K4s Pacific, succeededByClass, PRR T1]
-
A.
PRR K4s
The PRR K4s was a class of iconic 4-6-2 "Pacific" steam locomotives that served as the primary passenger power for the Pennsylvania Railroad in the first half of the 20th century.
-
B.
PRR
PRR is the abbreviation commonly used for the Pennsylvania Railroad Company, once one of the largest and most influential railroads in the United States.
-
C.
Z train
The Z train is a New York City Subway rush-hour, skip-stop service that runs along the J line in Brooklyn and Queens, providing limited-stop service between Jamaica Center and lower Manhattan.
-
D.
MARC Train
MARC Train is a commuter rail service operating in Maryland and the surrounding region, connecting cities such as Washington, D.C., Baltimore, and Martinsburg.
-
E.
GG1 electric locomotive
The GG1 electric locomotive was a streamlined, high-speed electric locomotive class that became an iconic workhorse of American railroading, particularly in the Northeast corridor, during much of the 20th century.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: PRR T1 Triple: [K4s Pacific, succeededByClass, PRR T1]
Generated description
The PRR T1 was a class of streamlined 4-4-4-4 duplex steam locomotives built for the Pennsylvania Railroad in the 1940s, known for their high-speed passenger service and distinctive Art Deco styling.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: PRR T1 Target entity description: The PRR T1 was a class of streamlined 4-4-4-4 duplex steam locomotives built for the Pennsylvania Railroad in the 1940s, known for their high-speed passenger service and distinctive Art Deco styling.
-
A.
PRR K4s
The PRR K4s was a class of iconic 4-6-2 "Pacific" steam locomotives that served as the primary passenger power for the Pennsylvania Railroad in the first half of the 20th century.
-
B.
PRR
PRR is the abbreviation commonly used for the Pennsylvania Railroad Company, once one of the largest and most influential railroads in the United States.
-
C.
Z train
The Z train is a New York City Subway rush-hour, skip-stop service that runs along the J line in Brooklyn and Queens, providing limited-stop service between Jamaica Center and lower Manhattan.
-
D.
MARC Train
MARC Train is a commuter rail service operating in Maryland and the surrounding region, connecting cities such as Washington, D.C., Baltimore, and Martinsburg.
-
E.
GG1 electric locomotive
The GG1 electric locomotive was a streamlined, high-speed electric locomotive class that became an iconic workhorse of American railroading, particularly in the Northeast corridor, during much of the 20th century.
- F. None of above. chosen
Provenance (5 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_69a493309df48190a327f748e88049a6 |
completed | March 1, 2026, 7:27 p.m. |
| NER | Named-entity recognition | batch_69a49df68f2c8190a0ee9da4692b2a62 |
completed | March 1, 2026, 8:13 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a55a7561dc81908e2e2516c63c18a7 |
completed | March 2, 2026, 9:37 a.m. |
| NEDg | Description generation | batch_69a55b2152ac8190b034523d3a01f835 |
completed | March 2, 2026, 9:40 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69a55b77d6448190acb5adc7a37aacd7 |
completed | March 2, 2026, 9:42 a.m. |
Created at: March 1, 2026, 7:35 p.m.