Triple
T386704
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Crystal City |
E8794
|
entity |
| Predicate | hasRailStation |
P726
|
FINISHED |
| Object |
Crystal City station (VRE)
Crystal City station (VRE) is a Virginia Railway Express commuter rail stop serving the Crystal City neighborhood in Arlington, Virginia, providing connections to Washington, D.C. and other regional destinations.
|
E51676
|
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: Crystal City station (VRE) | Statement: [Crystal City, hasRailStation, Crystal City station (VRE)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Crystal City station (VRE) Context triple: [Crystal City, hasRailStation, Crystal City station (VRE)]
-
A.
Crystal City station (Washington Metro)
Crystal City station (Washington Metro) is an underground rapid transit station in Arlington, Virginia, serving the Blue and Yellow Lines and providing access to the Crystal City business district near Reagan National Airport.
-
B.
Arlington station
Arlington station is an underground light rail stop on Boston's MBTA Green Line located near the Back Bay and Boston Public Garden.
-
C.
Hunt Valley station
Hunt Valley station is a light rail transit station in Hunt Valley, Maryland, serving as the northern endpoint of the Baltimore Light RailLink system.
-
D.
Glen Burnie (Cromwell / Glen Burnie) station
Glen Burnie (Cromwell / Glen Burnie) station is a major Baltimore Light RailLink facility in Glen Burnie, Maryland, serving as a key commuter hub with parking and connections to surrounding suburban areas.
-
E.
BWI Airport station
BWI Airport station is a transit station serving Baltimore/Washington International Thurgood Marshall Airport, providing rail connections between the airport and the Baltimore metropolitan area.
- 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: Crystal City station (VRE) Triple: [Crystal City, hasRailStation, Crystal City station (VRE)]
Generated description
Crystal City station (VRE) is a Virginia Railway Express commuter rail stop serving the Crystal City neighborhood in Arlington, Virginia, providing connections to Washington, D.C. and other regional destinations.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Crystal City station (VRE) Target entity description: Crystal City station (VRE) is a Virginia Railway Express commuter rail stop serving the Crystal City neighborhood in Arlington, Virginia, providing connections to Washington, D.C. and other regional destinations.
-
A.
Crystal City station (Washington Metro)
Crystal City station (Washington Metro) is an underground rapid transit station in Arlington, Virginia, serving the Blue and Yellow Lines and providing access to the Crystal City business district near Reagan National Airport.
-
B.
Arlington station
Arlington station is an underground light rail stop on Boston's MBTA Green Line located near the Back Bay and Boston Public Garden.
-
C.
Hunt Valley station
Hunt Valley station is a light rail transit station in Hunt Valley, Maryland, serving as the northern endpoint of the Baltimore Light RailLink system.
-
D.
Glen Burnie (Cromwell / Glen Burnie) station
Glen Burnie (Cromwell / Glen Burnie) station is a major Baltimore Light RailLink facility in Glen Burnie, Maryland, serving as a key commuter hub with parking and connections to surrounding suburban areas.
-
E.
BWI Airport station
BWI Airport station is a transit station serving Baltimore/Washington International Thurgood Marshall Airport, providing rail connections between the airport and the Baltimore metropolitan area.
- 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_69a2e7f47dd08190a4e294ccbbe46cd4 |
completed | Feb. 28, 2026, 1:04 p.m. |
| NER | Named-entity recognition | batch_69a2ec447b5481908a5a084787b44ced |
completed | Feb. 28, 2026, 1:23 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a4177149008190a4b7b252e21dcb09 |
completed | March 1, 2026, 10:39 a.m. |
| NEDg | Description generation | batch_69a41834c510819093a9405a0bea297a |
completed | March 1, 2026, 10:43 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69a4188888ec8190b9dc3efb93bfe627 |
completed | March 1, 2026, 10:44 a.m. |
Created at: Feb. 28, 2026, 1:08 p.m.