Triple

T9643260

Position	Surface form	Disambiguated ID	Type / Status
Subject	Harrodsburg Limestone	`E233126`	entity
Predicate	region	`P40`	FINISHED
Object	Illinois Basin area The Illinois Basin area is a major structural and sedimentary basin in the central United States, primarily underlying parts of Illinois, Indiana, and Kentucky, known for its thick Paleozoic rock sequences and significant fossil fuel and mineral resources.	`E812279`	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: Illinois Basin area | Statement: [Harrodsburg Limestone, region, Illinois Basin area]

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

Target entity: Illinois Basin area
Context triple: [Harrodsburg Limestone, region, Illinois Basin area]

A. Michigan Basin
The Michigan Basin is a large, bowl-shaped sedimentary basin in the Great Lakes region known for its thick Paleozoic rock sequences and significant oil, gas, and mineral resources.
B. Arkoma Basin
The Arkoma Basin is a geologic sedimentary basin in the south-central United States, primarily in Arkansas and Oklahoma, known for its Paleozoic rock formations and significant natural gas and petroleum resources.
C. Mississippi Embayment
The Mississippi Embayment is a broad, low-lying structural trough and sedimentary basin of the central United States that extends northward from the Gulf of Mexico and encompasses parts of several states along the lower Mississippi River.
D. Illinois River Valley
The Illinois River Valley is a prominent Midwestern river valley in the U.S. state of Illinois, characterized by its broad floodplains, rich agricultural land, and historical role as a transportation and trade corridor.
E. Nashville Basin
The Nashville Basin is a geologic and topographic lowland in central Tennessee known for its fertile soils, karst features, and distinctive bowl-shaped landscape surrounding the city of Nashville.
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: Illinois Basin area
Triple: [Harrodsburg Limestone, region, Illinois Basin area]

Generated description

The Illinois Basin area is a major structural and sedimentary basin in the central United States, primarily underlying parts of Illinois, Indiana, and Kentucky, known for its thick Paleozoic rock sequences and significant fossil fuel and mineral resources.

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

Target entity: Illinois Basin area
Target entity description: The Illinois Basin area is a major structural and sedimentary basin in the central United States, primarily underlying parts of Illinois, Indiana, and Kentucky, known for its thick Paleozoic rock sequences and significant fossil fuel and mineral resources.

A. Michigan Basin
The Michigan Basin is a large, bowl-shaped sedimentary basin in the Great Lakes region known for its thick Paleozoic rock sequences and significant oil, gas, and mineral resources.
B. Arkoma Basin
The Arkoma Basin is a geologic sedimentary basin in the south-central United States, primarily in Arkansas and Oklahoma, known for its Paleozoic rock formations and significant natural gas and petroleum resources.
C. Mississippi Embayment
The Mississippi Embayment is a broad, low-lying structural trough and sedimentary basin of the central United States that extends northward from the Gulf of Mexico and encompasses parts of several states along the lower Mississippi River.
D. Illinois River Valley
The Illinois River Valley is a prominent Midwestern river valley in the U.S. state of Illinois, characterized by its broad floodplains, rich agricultural land, and historical role as a transportation and trade corridor.
E. Nashville Basin
The Nashville Basin is a geologic and topographic lowland in central Tennessee known for its fertile soils, karst features, and distinctive bowl-shaped landscape surrounding the city of Nashville.
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_69ca848a5a908190aad251f4137b0c3a`	completed	March 30, 2026, 2:11 p.m.
NER	Named-entity recognition	`batch_69cd9b7cda388190a38f96d78085f404`	completed	April 1, 2026, 10:26 p.m.
NED1	Entity disambiguation (via context triple)	`batch_69d18252c1cc81908d33c9c55d645fbf`	completed	April 4, 2026, 9:27 p.m.
NEDg	Description generation	`batch_69d18324756c819089eb7edc107ed8b2`	completed	April 4, 2026, 9:31 p.m.
NED2	Entity disambiguation (via description)	`batch_69d1856b88908190a787765e1d8f001f`	completed	April 4, 2026, 9:40 p.m.

Created at: March 30, 2026, 8:12 p.m.