Triple

T22215101

Position	Surface form	Disambiguated ID	Type / Status
Subject	Main Line (Sri Lanka)	`E549054`	entity
Predicate	notableService	`P22`	FINISHED
Object	Udarata Menike express train	`—`	NE NERFINISHED

How this triple was built (3 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: Udarata Menike express train | Statement: [Main Line (Sri Lanka), notableService, Udarata Menike express train]

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Udarata Menike express train
Context triple: [Main Line (Sri Lanka), notableService, Udarata Menike express train]

A. Liberator Express
The Liberator Express was a transport aircraft variant of the Consolidated B-24 Liberator bomber used primarily during World War II for cargo and personnel transport.
B. XPT train
The XPT train is a long-distance, high-speed diesel passenger train used in New South Wales, Australia, based on the British InterCity 125 design.
C. Silver Meteor (train)
The Silver Meteor is an Amtrak long-distance passenger train that operates along the U.S. East Coast between New York City and Miami.
D. Shinonsen
Shinonsen is a town in northern Hyōgo Prefecture, Japan, known for its hot spring resorts and scenic coastal and mountainous landscapes.
E. Sud Express
Sud Express is a historic European overnight train service that connected Paris with Lisbon, renowned for its long-distance luxury travel and international route.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Udarata Menike express train
Target entity description: The Udarata Menike express train is a famous Sri Lankan passenger service that runs through the scenic hill country between Colombo and Badulla, renowned for its picturesque views and popularity with both locals and tourists.

A. Liberator Express
The Liberator Express was a transport aircraft variant of the Consolidated B-24 Liberator bomber used primarily during World War II for cargo and personnel transport.
B. XPT train
The XPT train is a long-distance, high-speed diesel passenger train used in New South Wales, Australia, based on the British InterCity 125 design.
C. Silver Meteor (train)
The Silver Meteor is an Amtrak long-distance passenger train that operates along the U.S. East Coast between New York City and Miami.
D. Shinonsen
Shinonsen is a town in northern Hyōgo Prefecture, Japan, known for its hot spring resorts and scenic coastal and mountainous landscapes.
E. Sud Express
Sud Express is a historic European overnight train service that connected Paris with Lisbon, renowned for its long-distance luxury travel and international route.
F. None of above. chosen

Provenance (2 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_69e11e3f7e04819089806d81d5ac431e`	completed	April 16, 2026, 5:37 p.m.
NER	Named-entity recognition	`batch_69f12b8bdfbc8190832809edbe8b7c27`	completed	April 28, 2026, 9:50 p.m.

Created at: April 16, 2026, 8:37 p.m.