Triple

T15055032
Position Surface form Disambiguated ID Type / Status
Subject Alton Lock and Dam E379465 entity
Predicate alsoKnownAs P39 FINISHED
Object Lock and Dam No. 26 (replacement)
Lock and Dam No. 26 (replacement) is a major navigation and flood-control structure on the Upper Mississippi River near Alton, Illinois, that facilitates barge traffic and water level management.
 E1136923 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: Lock and Dam No. 26 (replacement) | Statement: [Alton Lock and Dam, alsoKnownAs, Lock and Dam No. 26 (replacement)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Lock and Dam No. 26 (replacement)
Context triple: [Alton Lock and Dam, alsoKnownAs, Lock and Dam No. 26 (replacement)]
  • A. Lock and Dam No. 25
    Lock and Dam No. 25 is a navigation and flood-control structure on the Upper Mississippi River that helps regulate water levels and support barge traffic.
  • B. Holt Lock and Dam
    Holt Lock and Dam is a navigation and flood-control structure on the Black Warrior River in Alabama that helps regulate water levels and support commercial barge traffic.
  • C. Murray Lock and Dam
    Murray Lock and Dam is a navigation and flood-control structure on the Arkansas River near Little Rock, Arkansas, that helps regulate river flow and support commercial barge traffic.
  • D. Marmet Lock and Dam
    Marmet Lock and Dam is a navigation and flood-control structure on the Kanawha River in West Virginia that helps maintain a stable waterway for commercial and recreational traffic.
  • E. McNary Lock and Dam
    McNary Lock and Dam is a navigation lock facility integrated into the McNary Dam complex on the Columbia River, enabling river traffic to bypass the dam.
  • 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: Lock and Dam No. 26 (replacement)
Triple: [Alton Lock and Dam, alsoKnownAs, Lock and Dam No. 26 (replacement)]
Generated description
Lock and Dam No. 26 (replacement) is a major navigation and flood-control structure on the Upper Mississippi River near Alton, Illinois, that facilitates barge traffic and water level management.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Lock and Dam No. 26 (replacement)
Target entity description: Lock and Dam No. 26 (replacement) is a major navigation and flood-control structure on the Upper Mississippi River near Alton, Illinois, that facilitates barge traffic and water level management.
  • A. Lock and Dam No. 25
    Lock and Dam No. 25 is a navigation and flood-control structure on the Upper Mississippi River that helps regulate water levels and support barge traffic.
  • B. Holt Lock and Dam
    Holt Lock and Dam is a navigation and flood-control structure on the Black Warrior River in Alabama that helps regulate water levels and support commercial barge traffic.
  • C. Murray Lock and Dam
    Murray Lock and Dam is a navigation and flood-control structure on the Arkansas River near Little Rock, Arkansas, that helps regulate river flow and support commercial barge traffic.
  • D. Marmet Lock and Dam
    Marmet Lock and Dam is a navigation and flood-control structure on the Kanawha River in West Virginia that helps maintain a stable waterway for commercial and recreational traffic.
  • E. McNary Lock and Dam
    McNary Lock and Dam is a navigation lock facility integrated into the McNary Dam complex on the Columbia River, enabling river traffic to bypass the dam.
  • 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_69d85cd64d108190853797a95c11cc45 completed April 10, 2026, 2:13 a.m.
NER Named-entity recognition batch_69deda92091c81909180f486edf01405 completed April 15, 2026, 12:23 a.m.
NED1 Entity disambiguation (via context triple) batch_69feae0da8008190a39d63648228a34c completed May 9, 2026, 3:46 a.m.
NEDg Description generation batch_69feb10161fc81908aef193552ada55b completed May 9, 2026, 3:58 a.m.
NED2 Entity disambiguation (via description) batch_69feb168eac0819098bd76bac6daa838 completed May 9, 2026, 4 a.m.
Created at: April 10, 2026, 3:01 a.m.