Triple
T11205227
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Union Square station |
E265143
|
entity |
| Predicate | servedByLine |
P1293
|
FINISHED |
| Object | Green Line Union Square Branch |
E381136
|
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: Green Line Union Square Branch | Statement: [Union Square station, servedByLine, Green Line Union Square Branch]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Green Line Union Square Branch Context triple: [Union Square station, servedByLine, Green Line Union Square Branch]
-
A.
Green Line Union Square branch
chosen
The Green Line Union Square branch is a light rail extension of Boston’s MBTA Green Line that serves the Union Square area of Somerville, Massachusetts.
-
B.
Ashmont branch
The Ashmont branch is a southern segment of Boston's MBTA Red Line rapid transit system that serves neighborhoods including Dorchester and terminates at Ashmont station.
-
C.
Red Line Braintree Branch
The Red Line Braintree Branch is a southern extension of Boston's MBTA Red Line rapid transit system that serves communities between Quincy and Braintree.
-
D.
Stoughton Branch
Stoughton Branch is a commuter rail branch line in Massachusetts that serves the town of Stoughton as part of the MBTA’s Providence/Stoughton Line.
-
E.
Lake Street branch
The Lake Street branch is a segment of Chicago's elevated rapid transit system, historically part of the Green Line serving the city's West Side.
- 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_69d6aa9eb9248190b20211772621b4bc |
completed | April 8, 2026, 7:21 p.m. |
| NER | Named-entity recognition | batch_69d7e8d4eef88190a7f05bca82d919b9 |
completed | April 9, 2026, 5:58 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69e4972bfbd481908cd0da59389ae17c |
completed | April 19, 2026, 8:49 a.m. |
Created at: April 8, 2026, 9:30 p.m.