Triple

T17644277

Position	Surface form	Disambiguated ID	Type / Status
Subject	M-1 Rail	`E429314`	entity
Predicate	associatedWithTransitAgency	`P20657`	FINISHED
Object	Regional Transit Authority of Southeast Michigan The Regional Transit Authority of Southeast Michigan is the coordinating public transportation agency for the Detroit metropolitan area, responsible for planning and integrating regional transit services across multiple counties and providers.	`E1279337`	NE FINISHED

How this triple was built (4 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: Regional Transit Authority of Southeast Michigan | Statement: [M-1 Rail, associatedWithTransitAgency, Regional Transit Authority of Southeast Michigan]

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

Target entity: Regional Transit Authority of Southeast Michigan
Context triple: [M-1 Rail, associatedWithTransitAgency, Regional Transit Authority of Southeast Michigan]

A. Ann Arbor Area Transportation Authority
The Ann Arbor Area Transportation Authority is the public transit agency that operates bus and related transportation services in the Ann Arbor–Ypsilanti region of Michigan.
B. Toledo Area Regional Transit Authority
The Toledo Area Regional Transit Authority is the primary public transportation agency serving Toledo, Ohio, and surrounding communities with bus and paratransit services.
C. Manchester Transit Authority
Manchester Transit Authority is the primary public bus and paratransit service provider for the city of Manchester, New Hampshire and surrounding areas.
D. Lorain County Transit
Lorain County Transit is a regional public transportation agency serving communities in and around Lorain County, Ohio.
E. Detroit Department of Transportation
The Detroit Department of Transportation is the city agency responsible for operating and managing Detroit’s public transit services, including its bus network and related transportation infrastructure.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NEDg Description generation gpt-5.1

Instruction

Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"

Input

Entity: Regional Transit Authority of Southeast Michigan
Triple: [M-1 Rail, associatedWithTransitAgency, Regional Transit Authority of Southeast Michigan]

Generated description

The Regional Transit Authority of Southeast Michigan is the coordinating public transportation agency for the Detroit metropolitan area, responsible for planning and integrating regional transit services across multiple counties and providers.

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

Target entity: Regional Transit Authority of Southeast Michigan
Target entity description: The Regional Transit Authority of Southeast Michigan is the coordinating public transportation agency for the Detroit metropolitan area, responsible for planning and integrating regional transit services across multiple counties and providers.

A. Ann Arbor Area Transportation Authority
The Ann Arbor Area Transportation Authority is the public transit agency that operates bus and related transportation services in the Ann Arbor–Ypsilanti region of Michigan.
B. Toledo Area Regional Transit Authority
The Toledo Area Regional Transit Authority is the primary public transportation agency serving Toledo, Ohio, and surrounding communities with bus and paratransit services.
C. Manchester Transit Authority
Manchester Transit Authority is the primary public bus and paratransit service provider for the city of Manchester, New Hampshire and surrounding areas.
D. Lorain County Transit
Lorain County Transit is a regional public transportation agency serving communities in and around Lorain County, Ohio.
E. Detroit Department of Transportation
The Detroit Department of Transportation is the city agency responsible for operating and managing Detroit’s public transit services, including its bus network and related transportation infrastructure.
F. None of above. chosen

Provenance (5 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_69d889e2c2608190b762e76d9b2262f1`	completed	April 10, 2026, 5:25 a.m.
NER	Named-entity recognition	`batch_69e46de7da4881908d67f447910dba2f`	completed	April 19, 2026, 5:53 a.m.
NED1	Entity disambiguation (via context triple)	`batch_6a020aa9ca8881909005920e458272a0`	completed	May 11, 2026, 4:58 p.m.
NEDg	Description generation	`batch_6a020cb894348190a69b50b92974ac14`	completed	May 11, 2026, 5:07 p.m.
NED2	Entity disambiguation (via description)	`batch_6a020d151e3881909f6cb1c01d7a27b4`	completed	May 11, 2026, 5:08 p.m.

Created at: April 10, 2026, 6:04 a.m.