Triple
T5219742
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Union Pacific Valley Subdivision (segments) |
E117840
|
entity |
| Predicate | partOf |
P40
|
FINISHED |
| Object |
Union Pacific Valley Subdivision
The Union Pacific Valley Subdivision is a railroad line operated by Union Pacific that serves as a key freight corridor within its regional rail network.
|
E506076
|
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: Union Pacific Valley Subdivision | Statement: [Union Pacific Valley Subdivision (segments), partOf, Union Pacific Valley Subdivision]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Union Pacific Valley Subdivision Context triple: [Union Pacific Valley Subdivision (segments), partOf, Union Pacific Valley Subdivision]
-
A.
Union Pacific Railroad Coast Subdivision
The Union Pacific Railroad Coast Subdivision is a key rail corridor in California that carries both freight and commuter services, including trains operated by the Altamont Corridor Express.
-
B.
Union Pacific Railroad Niles Subdivision
The Union Pacific Railroad Niles Subdivision is a freight and passenger rail corridor in California’s East Bay and Tri-Valley region that carries both Union Pacific trains and commuter services such as the Altamont Corridor Express.
-
C.
BNSF Scenic Subdivision
The BNSF Scenic Subdivision is a major BNSF Railway line through Washington state’s Cascade Mountains, known for its steep grades, tunnels, and use by both freight and passenger trains.
-
D.
Union Pacific Moffat Subdivision
The Union Pacific Moffat Subdivision is a major railroad line in Colorado that carries freight and passenger trains through the Rocky Mountains via the historic Moffat Tunnel and surrounding mountain passes.
-
E.
Union Pacific Railroad Tracy Subdivision
The Union Pacific Railroad Tracy Subdivision is a freight and passenger rail line in California’s Central Valley and Altamont Pass area that serves as a key route for both Union Pacific operations and commuter services like the Altamont Corridor Express.
- 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: Union Pacific Valley Subdivision Triple: [Union Pacific Valley Subdivision (segments), partOf, Union Pacific Valley Subdivision]
Generated description
The Union Pacific Valley Subdivision is a railroad line operated by Union Pacific that serves as a key freight corridor within its regional rail network.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Union Pacific Valley Subdivision Target entity description: The Union Pacific Valley Subdivision is a railroad line operated by Union Pacific that serves as a key freight corridor within its regional rail network.
-
A.
Union Pacific Railroad Coast Subdivision
The Union Pacific Railroad Coast Subdivision is a key rail corridor in California that carries both freight and commuter services, including trains operated by the Altamont Corridor Express.
-
B.
Union Pacific Railroad Niles Subdivision
The Union Pacific Railroad Niles Subdivision is a freight and passenger rail corridor in California’s East Bay and Tri-Valley region that carries both Union Pacific trains and commuter services such as the Altamont Corridor Express.
-
C.
BNSF Scenic Subdivision
The BNSF Scenic Subdivision is a major BNSF Railway line through Washington state’s Cascade Mountains, known for its steep grades, tunnels, and use by both freight and passenger trains.
-
D.
Union Pacific Moffat Subdivision
The Union Pacific Moffat Subdivision is a major railroad line in Colorado that carries freight and passenger trains through the Rocky Mountains via the historic Moffat Tunnel and surrounding mountain passes.
-
E.
Union Pacific Railroad Tracy Subdivision
The Union Pacific Railroad Tracy Subdivision is a freight and passenger rail line in California’s Central Valley and Altamont Pass area that serves as a key route for both Union Pacific operations and commuter services like the Altamont Corridor Express.
- 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_69bd4465e03081909bfcfd7113062590 |
completed | March 20, 2026, 12:58 p.m. |
| NER | Named-entity recognition | batch_69bd7ab6e63c8190964b2b65a0206134 |
completed | March 20, 2026, 4:49 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69befe5e0d4c819095ea8b185754394e |
completed | March 21, 2026, 8:23 p.m. |
| NEDg | Description generation | batch_69befed3724c8190a6552cbf61c510c5 |
completed | March 21, 2026, 8:25 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69beff31344c81908c3b62cf528df3c3 |
completed | March 21, 2026, 8:27 p.m. |
Created at: March 20, 2026, 1:48 p.m.