Triple
T4178960
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MBTA diesel locomotives |
E86545
|
entity |
| Predicate | usedOnLine |
P15252
|
FINISHED |
| Object | Needham Line |
E164549
|
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: Needham Line | Statement: [MBTA diesel locomotives, usedOnLine, Needham Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Needham Line Context triple: [MBTA diesel locomotives, usedOnLine, Needham Line]
-
A.
Needham Line
chosen
The Needham Line is a Massachusetts Bay Transportation Authority commuter rail route serving Boston and its southwestern suburbs, terminating in the town of Needham.
-
B.
Winter Line
The Winter Line was a series of German defensive fortifications in southern Italy during World War II, designed to delay the Allied advance toward Rome.
-
C.
Pfannenstiel ridge
Pfannenstiel ridge is a wooded hill range in the canton of Zurich, Switzerland, known for its scenic hiking trails and panoramic views over Lake Zurich and the surrounding Alps.
-
D.
Malinta
Malinta is a barangay (village-level administrative division) of the municipality of Los Baños in the province of Laguna, Philippines.
-
E.
Shirshov Ridge
Shirshov Ridge is a prominent underwater volcanic mountain range in the western Bering Sea that forms part of the seafloor’s complex tectonic and geological structure.
- 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_69aed93de98c8190ad838ce507b77c8a |
completed | March 9, 2026, 2:29 p.m. |
| NER | Named-entity recognition | batch_69af030114c88190b725908a32ace750 |
completed | March 9, 2026, 5:27 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b589f5864881909c9fc787dd9b2341 |
completed | March 14, 2026, 4:16 p.m. |
Created at: March 9, 2026, 3:45 p.m.