Triple

T21362229

Position	Surface form	Disambiguated ID	Type / Status
Subject	Montrose Avenue	`E526810`	entity
Predicate	hasPublicTransitStation	`P15438`	FINISHED
Object	Montrose station (CTA Blue Line)	`—`	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: Montrose station (CTA Blue Line) | Statement: [Montrose Avenue, hasPublicTransitStation, Montrose station (CTA Blue Line)]

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

Target entity: Montrose station (CTA Blue Line)
Context triple: [Montrose Avenue, hasPublicTransitStation, Montrose station (CTA Blue Line)]

A. Montrose station (CTA Brown Line)
Montrose station (CTA Brown Line) is an elevated Chicago 'L' rapid transit stop on the Brown Line serving the North Center/Lincoln Square area.
B. Morse station (CTA Red Line)
Morse station (CTA Red Line) is an elevated rapid transit stop on Chicago's Red Line serving the Rogers Park neighborhood on the city's North Side.
C. Monroe (CTA Blue Line station)
Monroe is a Chicago Transit Authority Blue Line subway station located in downtown Chicago’s Loop, serving the city’s central business district.
D. Pulaski station (CTA Orange Line)
Pulaski station (CTA Orange Line) is an elevated rapid transit stop on Chicago’s Orange Line serving the West Elsdon neighborhood near Midway Airport.
E. Monroe (CTA Red Line station)
Monroe is an underground Chicago 'L' station on the Red Line located in the downtown Loop area.
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: Montrose station (CTA Blue Line)
Target entity description: Montrose station (CTA Blue Line) is an elevated Chicago Transit Authority rapid transit stop on the Blue Line’s O’Hare branch serving the Irving Park neighborhood.

A. Montrose station (CTA Brown Line)
Montrose station (CTA Brown Line) is an elevated Chicago 'L' rapid transit stop on the Brown Line serving the North Center/Lincoln Square area.
B. Morse station (CTA Red Line)
Morse station (CTA Red Line) is an elevated rapid transit stop on Chicago's Red Line serving the Rogers Park neighborhood on the city's North Side.
C. Monroe (CTA Blue Line station)
Monroe is a Chicago Transit Authority Blue Line subway station located in downtown Chicago’s Loop, serving the city’s central business district.
D. Pulaski station (CTA Orange Line)
Pulaski station (CTA Orange Line) is an elevated rapid transit stop on Chicago’s Orange Line serving the West Elsdon neighborhood near Midway Airport.
E. Monroe (CTA Red Line station)
Monroe is an underground Chicago 'L' station on the Red Line located in the downtown Loop area.
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_69e0b51d8a308190b09113b3b3f9bc15`	completed	April 16, 2026, 10:08 a.m.
NER	Named-entity recognition	`batch_69e8b06b219c81908f7674ae459e7931`	completed	April 22, 2026, 11:26 a.m.

Created at: April 16, 2026, 5:08 p.m.