Triple
T7048572
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Chicago (via Lake Shore Limited) |
E163705
|
entity |
| Predicate | linkedByServiceTo |
P74738
|
FINISHED |
| Object |
Boston (via Lake Shore Limited)
Boston (via Lake Shore Limited) is the eastern terminus city served by Amtrak’s Lake Shore Limited route that runs between Chicago and Boston.
|
E639527
|
NE FINISHED |
How this triple was built (5 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: Boston (via Lake Shore Limited) | Statement: [Chicago (via Lake Shore Limited), linkedByServiceTo, Boston (via Lake Shore Limited)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Boston (via Lake Shore Limited) Context triple: [Chicago (via Lake Shore Limited), linkedByServiceTo, Boston (via Lake Shore Limited)]
-
A.
Chicago (via Lake Shore Limited)
Chicago (via Lake Shore Limited) is the western terminus city of Amtrak’s Lake Shore Limited route, a major intercity passenger rail service linking the Midwest and the Northeast.
-
B.
Amtrak at South Station
Amtrak at South Station is the intercity passenger rail service operating from Boston’s historic South Station, providing regional and long-distance train connections along the Northeast Corridor and beyond.
-
C.
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.
-
D.
Amtrak Downeaster (at North Station)
The Amtrak Downeaster (at North Station) is an intercity passenger rail service that operates between Boston’s North Station and Brunswick, Maine, providing regional connections through New Hampshire and coastal Maine.
-
E.
Boston’s North Station (via Fitchburg Line)
Boston’s North Station (via Fitchburg Line) is a major MBTA commuter rail terminal in Boston that serves as the downtown endpoint for the Fitchburg Line and several other northside rail routes.
- 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: Boston (via Lake Shore Limited) Triple: [Chicago (via Lake Shore Limited), linkedByServiceTo, Boston (via Lake Shore Limited)]
Generated description
Boston (via Lake Shore Limited) is the eastern terminus city served by Amtrak’s Lake Shore Limited route that runs between Chicago and Boston.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Boston (via Lake Shore Limited) Target entity description: Boston (via Lake Shore Limited) is the eastern terminus city served by Amtrak’s Lake Shore Limited route that runs between Chicago and Boston.
-
A.
Chicago (via Lake Shore Limited)
Chicago (via Lake Shore Limited) is the western terminus city of Amtrak’s Lake Shore Limited route, a major intercity passenger rail service linking the Midwest and the Northeast.
-
B.
Amtrak at South Station
Amtrak at South Station is the intercity passenger rail service operating from Boston’s historic South Station, providing regional and long-distance train connections along the Northeast Corridor and beyond.
-
C.
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.
-
D.
Amtrak Downeaster (at North Station)
The Amtrak Downeaster (at North Station) is an intercity passenger rail service that operates between Boston’s North Station and Brunswick, Maine, providing regional connections through New Hampshire and coastal Maine.
-
E.
Boston’s North Station (via Fitchburg Line)
Boston’s North Station (via Fitchburg Line) is a major MBTA commuter rail terminal in Boston that serves as the downtown endpoint for the Fitchburg Line and several other northside rail routes.
- F. None of above. chosen
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: linkedByServiceTo Context triple: [Chicago (via Lake Shore Limited), linkedByServiceTo, Boston (via Lake Shore Limited)]
-
A.
relatedService
Indicates that one service is connected or associated with another service in a relevant or dependent way.
-
B.
linkedByStructure
Indicates that two entities are connected or associated through a shared structural element, configuration, or framework.
-
C.
servedByService
Indicates that something is provided, handled, or fulfilled by a particular service.
-
D.
leaderAssociatedWith
Indicates a relationship where a leader is connected or affiliated with a particular entity, such as an organization, group, or cause.
-
E.
linkedToPolicy
Indicates that an entity is associated or connected to a specific policy, such that the policy governs, influences, or is relevant to that entity.
- F. None of above. chosen
Provenance (7 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_69c6885f598c8190b6b6495c59d8d962 |
completed | March 27, 2026, 1:38 p.m. |
| NER | Named-entity recognition | batch_69c6e4a3c36c819080942c59f1830ae8 |
completed | March 27, 2026, 8:12 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c7888497b08190b1f2aa686e8e30c1 |
completed | March 28, 2026, 7:51 a.m. |
| NEDg | Description generation | batch_69c78c31d57c8190a45d25ac77ff6280 |
completed | March 28, 2026, 8:07 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c78d635c94819083463128483a60f6 |
completed | March 28, 2026, 8:12 a.m. |
| PD | Predicate disambiguation | batch_69c6e1bb602081908bfa6186a1f5a4b4 |
completed | March 27, 2026, 7:59 p.m. |
| PDg | Predicate description generation | batch_69c6e4a15b088190bee9a23e94aaac53 |
completed | March 27, 2026, 8:12 p.m. |
Created at: March 27, 2026, 2:37 p.m.