Triple
T15203994
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Toei Asakusa Line |
E363338
|
entity |
| Predicate | throughServiceWith |
P17741
|
FINISHED |
| Object | Keisei Narita Sky Access Line |
E727968
|
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: Keisei Narita Sky Access Line | Statement: [Toei Asakusa Line, throughServiceWith, Keisei Narita Sky Access Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Keisei Narita Sky Access Line Context triple: [Toei Asakusa Line, throughServiceWith, Keisei Narita Sky Access Line]
-
A.
Narita International Airport rail access system
chosen
The Narita International Airport rail access system is a network of railway lines and stations that provide direct train connections between Narita International Airport and the Tokyo metropolitan area.
-
B.
Keikyū Airport Line
The Keikyū Airport Line is a railway line in the Tokyo area that provides direct train access between central Tokyo and Haneda Airport.
-
C.
Narita Airport Line (Keisei)
The Narita Airport Line (Keisei) is a Japanese railway line operated by Keisei Electric Railway that provides rapid rail access between central Tokyo and Narita International Airport.
-
D.
Sendai Airport Line
The Sendai Airport Line is a railway line in Miyagi Prefecture, Japan, that connects Sendai Airport with central Sendai and the broader regional rail network.
-
E.
Narita Line
The Narita Line is a railway line in Japan operated by JR East that connects Chiba Prefecture with Narita and its surrounding areas, serving both local commuters and access to Narita International Airport via connecting services.
- 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_69d85a0b78bc8190b6e5ad51a2c4cfc5 |
completed | April 10, 2026, 2:01 a.m. |
| NER | Named-entity recognition | batch_69e006b693a48190a6230b7b52bc8cd3 |
completed | April 15, 2026, 9:44 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fee5e9e2d8819086ca62ca6037dd1c |
completed | May 9, 2026, 7:44 a.m. |
Created at: April 10, 2026, 3:11 a.m.