Triple
T10081986
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Fairfield Metro station |
E213922
|
entity |
| Predicate | code |
P1537
|
FINISHED |
| Object |
Fairfield Metro
Fairfield Metro is a commuter rail station in Fairfield, Connecticut, serving Metro-North Railroad’s New Haven Line.
|
E840545
|
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: Fairfield Metro | Statement: [Fairfield Metro station, code, Fairfield Metro]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Fairfield Metro Context triple: [Fairfield Metro station, code, Fairfield Metro]
-
A.
Medway Valley Line
The Medway Valley Line is a railway route in Kent, England, running along the River Medway and connecting towns such as Strood, Maidstone and Paddock Wood.
-
B.
Newark Light Rail
Newark Light Rail is a light rail transit system serving the city of Newark, New Jersey, connecting downtown, residential neighborhoods, and key regional transit hubs.
-
C.
Center City Commuter Connection
The Center City Commuter Connection is an underground rail tunnel in downtown Philadelphia that links formerly separate commuter rail lines into a unified through-running system.
-
D.
Purple Line Express
Purple Line Express is a rush-hour rapid transit service of the Chicago Transit Authority that operates as a faster, limited-stop variant of the Purple Line.
-
E.
MBTA Fairmount Line
The MBTA Fairmount Line is a commuter rail service in Boston, Massachusetts, connecting several neighborhoods in the city’s southern corridor to downtown.
- 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: Fairfield Metro Triple: [Fairfield Metro station, code, Fairfield Metro]
Generated description
Fairfield Metro is a commuter rail station in Fairfield, Connecticut, serving Metro-North Railroad’s New Haven Line.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Fairfield Metro Target entity description: Fairfield Metro is a commuter rail station in Fairfield, Connecticut, serving Metro-North Railroad’s New Haven Line.
-
A.
Medway Valley Line
The Medway Valley Line is a railway route in Kent, England, running along the River Medway and connecting towns such as Strood, Maidstone and Paddock Wood.
-
B.
Newark Light Rail
Newark Light Rail is a light rail transit system serving the city of Newark, New Jersey, connecting downtown, residential neighborhoods, and key regional transit hubs.
-
C.
Center City Commuter Connection
The Center City Commuter Connection is an underground rail tunnel in downtown Philadelphia that links formerly separate commuter rail lines into a unified through-running system.
-
D.
Purple Line Express
Purple Line Express is a rush-hour rapid transit service of the Chicago Transit Authority that operates as a faster, limited-stop variant of the Purple Line.
-
E.
MBTA Fairmount Line
The MBTA Fairmount Line is a commuter rail service in Boston, Massachusetts, connecting several neighborhoods in the city’s southern corridor to downtown.
- 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_69ca839bf730819086900c323c9b8c95 |
completed | March 30, 2026, 2:07 p.m. |
| NER | Named-entity recognition | batch_69cdd03482d481908b03d35dc2d16395 |
completed | April 2, 2026, 2:11 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d2b66b256c8190861066f7c19008d2 |
completed | April 5, 2026, 7:22 p.m. |
| NEDg | Description generation | batch_69d2b78f3c248190b104937e2d669882 |
completed | April 5, 2026, 7:27 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69d2b84a26a481908ab2705d5883cfce |
completed | April 5, 2026, 7:30 p.m. |
Created at: March 30, 2026, 9 p.m.