Triple
T5991381
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Alexandria Union Station |
E133357
|
entity |
| Predicate | servedByService |
P1294
|
FINISHED |
| Object | VRE Manassas Line |
E387187
|
NE FINISHED |
How this triple was built (2 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: VRE Manassas Line | Statement: [Alexandria Union Station, servedByService, VRE Manassas Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: VRE Manassas Line Context triple: [Alexandria Union Station, servedByService, VRE Manassas Line]
-
A.
VRE Manassas Line
chosen
The VRE Manassas Line is a Virginia Railway Express commuter rail route connecting Washington, D.C. with communities in Northern Virginia, including the city of Manassas.
-
B.
VRE Fredericksburg Line
The VRE Fredericksburg Line is a Virginia Railway Express commuter rail route connecting Fredericksburg and other communities in Northern Virginia with Washington, D.C.
-
C.
Richmond, Fredericksburg and Potomac Railroad
The Richmond, Fredericksburg and Potomac Railroad was a historic rail line in Virginia that served as a key north–south transportation corridor linking Washington, D.C. with Richmond and points south.
-
D.
Richmond and Petersburg Railroad
The Richmond and Petersburg Railroad was a 19th-century rail line in Virginia that played a key role in connecting Richmond to southern routes and later became part of larger systems like the Atlantic Coast Line Railroad.
-
E.
Alexandria, Loudoun and Hampshire Railroad
The Alexandria, Loudoun and Hampshire Railroad was a 19th-century Virginia railway line that played a strategic role during the American Civil War, including in early engagements such as the Battle of Vienna.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
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_69c0087010d081908bb8142342d63330 |
completed | March 22, 2026, 3:19 p.m. |
| NER | Named-entity recognition | batch_69c04e8fd030819095a4f3b3d425ec21 |
completed | March 22, 2026, 8:18 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c1136125808190a363a00a60d8675a |
completed | March 23, 2026, 10:18 a.m. |
Created at: March 22, 2026, 4:05 p.m.