Triple

T2463993
Position Surface form Disambiguated ID Type / Status
Subject Riverdale Park, Maryland E55199 entity
Predicate hasRecreationTrail P2515 FINISHED
Object Anacostia Tributary Trail System
The Anacostia Tributary Trail System is a network of multi-use trails in the Washington, D.C. metropolitan area that follows the tributaries of the Anacostia River, providing recreational and commuter routes for cyclists, runners, and walkers.
 E268163 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: Anacostia Tributary Trail System | Statement: [Riverdale Park, Maryland, hasRecreationTrail, Anacostia Tributary Trail System]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Anacostia Tributary Trail System
Context triple: [Riverdale Park, Maryland, hasRecreationTrail, Anacostia Tributary Trail System]
  • A. Anacostia Riverwalk Trail
    The Anacostia Riverwalk Trail is a multi-use recreational path in Washington, D.C., that connects parks, neighborhoods, and waterfront areas along the Anacostia River.
  • B. Four Mile Run Trail
    Four Mile Run Trail is a multi-use recreational path in Northern Virginia that follows Four Mile Run stream, linking parks, neighborhoods, and other major regional trails.
  • C. Rock Creek Park Trail
    Rock Creek Park Trail is a multi-use recreational path in Washington, D.C., that follows Rock Creek through wooded parkland for walking, running, and cycling.
  • D. Mingo Creek Greenway
    Mingo Creek Greenway is a multi-use recreational trail in Knightdale, North Carolina, offering walking, running, and biking paths along Mingo Creek and connecting to the regional greenway network.
  • E. Don Valley Trail system
    The Don Valley Trail system is a network of multi-use recreational paths in Toronto that follows the Don River through its ravine, popular for walking, running, and cycling.
  • 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: Anacostia Tributary Trail System
Triple: [Riverdale Park, Maryland, hasRecreationTrail, Anacostia Tributary Trail System]
Generated description
The Anacostia Tributary Trail System is a network of multi-use trails in the Washington, D.C. metropolitan area that follows the tributaries of the Anacostia River, providing recreational and commuter routes for cyclists, runners, and walkers.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Anacostia Tributary Trail System
Target entity description: The Anacostia Tributary Trail System is a network of multi-use trails in the Washington, D.C. metropolitan area that follows the tributaries of the Anacostia River, providing recreational and commuter routes for cyclists, runners, and walkers.
  • A. Anacostia Riverwalk Trail
    The Anacostia Riverwalk Trail is a multi-use recreational path in Washington, D.C., that connects parks, neighborhoods, and waterfront areas along the Anacostia River.
  • B. Four Mile Run Trail
    Four Mile Run Trail is a multi-use recreational path in Northern Virginia that follows Four Mile Run stream, linking parks, neighborhoods, and other major regional trails.
  • C. Rock Creek Park Trail
    Rock Creek Park Trail is a multi-use recreational path in Washington, D.C., that follows Rock Creek through wooded parkland for walking, running, and cycling.
  • D. Mingo Creek Greenway
    Mingo Creek Greenway is a multi-use recreational trail in Knightdale, North Carolina, offering walking, running, and biking paths along Mingo Creek and connecting to the regional greenway network.
  • E. Don Valley Trail system
    The Don Valley Trail system is a network of multi-use recreational paths in Toronto that follows the Don River through its ravine, popular for walking, running, and cycling.
  • 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_69ab49e3622c8190ad22afa2c4fbb807 completed March 6, 2026, 9:40 p.m.
NER Named-entity recognition batch_69abd12059788190a6493f64bb725aed completed March 7, 2026, 7:17 a.m.
NED1 Entity disambiguation (via context triple) batch_69aef0d6ed7481909e900f947463d5d8 completed March 9, 2026, 4:09 p.m.
NEDg Description generation batch_69aef186935c81909301659a96e1a4e2 completed March 9, 2026, 4:12 p.m.
NED2 Entity disambiguation (via description) batch_69aef8272668819084626e890a49e1b3 completed March 9, 2026, 4:41 p.m.
Created at: March 6, 2026, 9:44 p.m.