Triple
T2892753
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Western Maryland Railway |
E63864
|
entity |
| Predicate | notableLocomotiveClass |
P1305
|
FINISHED |
| Object |
WM F7 diesel units
The WM F7 diesel units were a fleet of Electro-Motive Division F7 locomotives that powered Western Maryland Railway’s freight and passenger services during the mid-20th century dieselization era.
|
E307595
|
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: WM F7 diesel units | Statement: [Western Maryland Railway, notableLocomotiveClass, WM F7 diesel units]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: WM F7 diesel units Context triple: [Western Maryland Railway, notableLocomotiveClass, WM F7 diesel units]
-
A.
BB 7200 locomotives
The BB 7200 locomotives are a class of French electric locomotives built for SNCF in the late 1970s and 1980s, widely used for both passenger and freight services on the 1.5 kV DC network.
-
B.
M7 electric multiple unit
The M7 electric multiple unit is a modern commuter rail car class built for high-frequency, third-rail electrified service, notably operating on New York’s Long Island Rail Road and similar regional rail networks.
-
C.
EMD F59PHI
The EMD F59PHI is a streamlined diesel-electric passenger locomotive widely used in North American intercity and commuter rail services.
-
D.
DE30AC locomotive
The DE30AC locomotive is a diesel-electric passenger locomotive built by EMD for the Long Island Rail Road, designed for push-pull commuter service with head-end power.
-
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: WM F7 diesel units Triple: [Western Maryland Railway, notableLocomotiveClass, WM F7 diesel units]
Generated description
The WM F7 diesel units were a fleet of Electro-Motive Division F7 locomotives that powered Western Maryland Railway’s freight and passenger services during the mid-20th century dieselization era.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: WM F7 diesel units Target entity description: The WM F7 diesel units were a fleet of Electro-Motive Division F7 locomotives that powered Western Maryland Railway’s freight and passenger services during the mid-20th century dieselization era.
-
A.
BB 7200 locomotives
The BB 7200 locomotives are a class of French electric locomotives built for SNCF in the late 1970s and 1980s, widely used for both passenger and freight services on the 1.5 kV DC network.
-
B.
M7 electric multiple unit
The M7 electric multiple unit is a modern commuter rail car class built for high-frequency, third-rail electrified service, notably operating on New York’s Long Island Rail Road and similar regional rail networks.
-
C.
EMD F59PHI
The EMD F59PHI is a streamlined diesel-electric passenger locomotive widely used in North American intercity and commuter rail services.
-
D.
DE30AC locomotive
The DE30AC locomotive is a diesel-electric passenger locomotive built by EMD for the Long Island Rail Road, designed for push-pull commuter service with head-end power.
-
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_69ab4c45822c8190830c5f2bb97bcfd0 |
completed | March 6, 2026, 9:51 p.m. |
| NER | Named-entity recognition | batch_69abe062234c81909411e34db7d2683d |
completed | March 7, 2026, 8:22 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b0317e15248190bade0f0fd930581a |
completed | March 10, 2026, 2:58 p.m. |
| NEDg | Description generation | batch_69b034b304f8819096eda16e314912b4 |
completed | March 10, 2026, 3:11 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69b03c60a5988190b015a1cf05068845 |
completed | March 10, 2026, 3:44 p.m. |
Created at: March 6, 2026, 10:07 p.m.