Triple

T989678
Position Surface form Disambiguated ID Type / Status
Subject Missouri River E21358 entity
Predicate USStateBorderFor P22803 FINISHED
Object Nebraska–Iowa border
The Nebraska–Iowa border is the state line in the central United States that largely follows the course of the Missouri River, separating Nebraska to the west from Iowa to the east.
E117633 NE FINISHED

How this triple was built (5 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: Nebraska–Iowa border | Statement: [Missouri River, USStateBorderFor, Nebraska–Iowa border]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Nebraska–Iowa border
Context triple: [Missouri River, USStateBorderFor, Nebraska–Iowa border]
  • A. Iowa–South Dakota border
    The Iowa–South Dakota border is the state line in the north-central United States that largely follows the course of the Big Sioux River, separating Iowa from South Dakota.
  • B. Missouri–Kansas state line
    The Missouri–Kansas state line is the boundary separating the states of Missouri and Kansas, notably running through the Kansas City metropolitan area and dividing it between the two states.
  • C. Nebraska–Iowa region
    The Nebraska–Iowa region is a bi-state area in the central United States that encompasses communities and economic activity spanning the border between eastern Nebraska and western Iowa, including the Omaha–Council Bluffs metropolitan area.
  • D. Alabama–Mississippi border
    The Alabama–Mississippi border is the state line separating Alabama and Mississippi in the southeastern United States, running through rural areas, forests, and river crossings.
  • E. eastern Nebraska
    Eastern Nebraska is a region of the U.S. state of Nebraska centered around the Omaha–Lincoln corridor, known for its relatively dense population, diversified economy, and role as the state’s primary commercial and cultural center.
  • 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: Nebraska–Iowa border
Triple: [Missouri River, USStateBorderFor, Nebraska–Iowa border]
Generated description
The Nebraska–Iowa border is the state line in the central United States that largely follows the course of the Missouri River, separating Nebraska to the west from Iowa to the east.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Nebraska–Iowa border
Target entity description: The Nebraska–Iowa border is the state line in the central United States that largely follows the course of the Missouri River, separating Nebraska to the west from Iowa to the east.
  • A. Iowa–South Dakota border
    The Iowa–South Dakota border is the state line in the north-central United States that largely follows the course of the Big Sioux River, separating Iowa from South Dakota.
  • B. Missouri–Kansas state line
    The Missouri–Kansas state line is the boundary separating the states of Missouri and Kansas, notably running through the Kansas City metropolitan area and dividing it between the two states.
  • C. Nebraska–Iowa region
    The Nebraska–Iowa region is a bi-state area in the central United States that encompasses communities and economic activity spanning the border between eastern Nebraska and western Iowa, including the Omaha–Council Bluffs metropolitan area.
  • D. Alabama–Mississippi border
    The Alabama–Mississippi border is the state line separating Alabama and Mississippi in the southeastern United States, running through rural areas, forests, and river crossings.
  • E. eastern Nebraska
    Eastern Nebraska is a region of the U.S. state of Nebraska centered around the Omaha–Lincoln corridor, known for its relatively dense population, diversified economy, and role as the state’s primary commercial and cultural center.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: USStateBorderFor
Context triple: [Missouri River, USStateBorderFor, Nebraska–Iowa border]
  • A. borderingStateOrTerritory
    Indicates that one state or territory shares a common boundary with another state or territory.
  • B. bordersMexicanState
    Indicates that one entity shares a land or maritime boundary with a state of Mexico.
  • C. bordersStateAcrossSea
    Indicates that one state is separated from another by a sea but still directly borders it across that body of water.
  • D. borderRegionOf
    Indicates that one region lies along, touches, or forms part of the boundary of another region.
  • E. countryBordering
    Indicates that one country shares a land or maritime boundary directly with another country.
  • F. None of above. chosen

Provenance (7 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_69a493c383dc8190a03257f22d4b4183 completed March 1, 2026, 7:30 p.m.
NER Named-entity recognition batch_69a4b4aa16f081909dcc7a7ce3fb1b64 completed March 1, 2026, 9:50 p.m.
NED1 Entity disambiguation (via context triple) batch_69ac258d9f4c8190b285455410b30575 completed March 7, 2026, 1:18 p.m.
NEDg Description generation batch_69ac267e4fa08190895fa6809d0decb8 completed March 7, 2026, 1:22 p.m.
NED2 Entity disambiguation (via description) batch_69ac271c8ad081909c1f1629e0793c40 completed March 7, 2026, 1:24 p.m.
PD Predicate disambiguation batch_69a4b2adbde48190b07966d0c3179516 completed March 1, 2026, 9:42 p.m.
PDg Predicate description generation batch_69a4b38630848190bd3898a4f42018ad completed March 1, 2026, 9:45 p.m.
Created at: March 1, 2026, 7:41 p.m.