Triple
T1295269
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Metra BNSF Railway Line |
E27639
|
entity |
| Predicate | formerName |
P65
|
FINISHED |
| Object |
Burlington Route commuter service
Burlington Route commuter service was the historic Chicago-area commuter rail operation of the Chicago, Burlington and Quincy Railroad that later evolved into today’s Metra BNSF Railway Line.
|
E147416
|
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: Burlington Route commuter service | Statement: [Metra BNSF Railway Line, formerName, Burlington Route commuter service]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Burlington Route commuter service Context triple: [Metra BNSF Railway Line, formerName, Burlington Route commuter service]
-
A.
Northstar commuter rail
Northstar commuter rail is a commuter train service in the Minneapolis–Saint Paul metropolitan area that connects downtown Minneapolis with northern suburbs and exurban communities.
-
B.
Amtrak Wolverine service
Amtrak Wolverine service is a passenger rail line operated by Amtrak that runs between Chicago and Pontiac in Michigan, serving key cities across the state.
-
C.
Trinity Railway Express
Trinity Railway Express is a commuter rail service connecting Dallas and Fort Worth, Texas, providing regional passenger transportation across the Dallas–Fort Worth metroplex.
-
D.
Sounder commuter rail
Sounder commuter rail is a regional passenger train service in the Seattle area that connects downtown Seattle with surrounding communities in Pierce and Snohomish counties.
-
E.
MBTA Commuter Rail Kingston Line
The MBTA Commuter Rail Kingston Line is a Massachusetts Bay Transportation Authority rail line providing commuter service between Boston and the South Shore, terminating in Kingston, Massachusetts.
- 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: Burlington Route commuter service Triple: [Metra BNSF Railway Line, formerName, Burlington Route commuter service]
Generated description
Burlington Route commuter service was the historic Chicago-area commuter rail operation of the Chicago, Burlington and Quincy Railroad that later evolved into today’s Metra BNSF Railway Line.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Burlington Route commuter service Target entity description: Burlington Route commuter service was the historic Chicago-area commuter rail operation of the Chicago, Burlington and Quincy Railroad that later evolved into today’s Metra BNSF Railway Line.
-
A.
Northstar commuter rail
Northstar commuter rail is a commuter train service in the Minneapolis–Saint Paul metropolitan area that connects downtown Minneapolis with northern suburbs and exurban communities.
-
B.
Amtrak Wolverine service
Amtrak Wolverine service is a passenger rail line operated by Amtrak that runs between Chicago and Pontiac in Michigan, serving key cities across the state.
-
C.
Trinity Railway Express
Trinity Railway Express is a commuter rail service connecting Dallas and Fort Worth, Texas, providing regional passenger transportation across the Dallas–Fort Worth metroplex.
-
D.
Sounder commuter rail
Sounder commuter rail is a regional passenger train service in the Seattle area that connects downtown Seattle with surrounding communities in Pierce and Snohomish counties.
-
E.
MBTA Commuter Rail Kingston Line
The MBTA Commuter Rail Kingston Line is a Massachusetts Bay Transportation Authority rail line providing commuter service between Boston and the South Shore, terminating in Kingston, Massachusetts.
- 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_69a496d6682881909ba658f1c1e0e2b0 |
completed | March 1, 2026, 7:43 p.m. |
| NER | Named-entity recognition | batch_69a4c0f4031481908f5e3a53d8a72929 |
completed | March 1, 2026, 10:43 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69acacc1e7948190a1ecd240c751d258 |
completed | March 7, 2026, 10:54 p.m. |
| NEDg | Description generation | batch_69acad6df8f08190bea3b43f15ef3a09 |
completed | March 7, 2026, 10:57 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69acadd171b08190a5454e75babd39a3 |
completed | March 7, 2026, 10:59 p.m. |
Created at: March 1, 2026, 7:51 p.m.