Triple

T11202204
Position Surface form Disambiguated ID Type / Status
Subject Downtown Houston E265067 entity
Predicate hasTransportation P105 FINISHED
Object Houston tunnel system
The Houston tunnel system is an extensive network of underground, climate-controlled pedestrian walkways connecting office buildings, shops, and restaurants beneath downtown Houston.
 E911758 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: Houston tunnel system | Statement: [Downtown Houston, hasTransportation, Houston tunnel system]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Houston tunnel system
Context triple: [Downtown Houston, hasTransportation, Houston tunnel system]
  • A. Center City Tunnel
    Center City Tunnel is an underground rail corridor in downtown Philadelphia that links several major commuter rail lines to create a unified through-running system.
  • B. Downtown Tunnel
    The Downtown Tunnel is a major underwater vehicular tunnel in the Hampton Roads region that carries traffic beneath the Elizabeth River between Norfolk and Portsmouth, Virginia.
  • C. Carmel Tunnels
    The Carmel Tunnels are a system of toll road tunnels in Haifa, Israel, that provide a fast east–west route beneath the Carmel mountain range to ease urban traffic congestion.
  • D. San Antonio River Tunnel
    The San Antonio River Tunnel is a major flood-control tunnel in San Antonio, Texas, designed to divert excess river water and protect the downtown and River Walk areas from flooding.
  • E. Hudson–Bergen light rail tunnels
    The Hudson–Bergen light rail tunnels are a set of underground passages in northeastern New Jersey that carry the Hudson–Bergen Light Rail system beneath the Hudson River waterfront and surrounding urban areas.
  • 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: Houston tunnel system
Triple: [Downtown Houston, hasTransportation, Houston tunnel system]
Generated description
The Houston tunnel system is an extensive network of underground, climate-controlled pedestrian walkways connecting office buildings, shops, and restaurants beneath downtown Houston.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Houston tunnel system
Target entity description: The Houston tunnel system is an extensive network of underground, climate-controlled pedestrian walkways connecting office buildings, shops, and restaurants beneath downtown Houston.
  • A. Center City Tunnel
    Center City Tunnel is an underground rail corridor in downtown Philadelphia that links several major commuter rail lines to create a unified through-running system.
  • B. Downtown Tunnel
    The Downtown Tunnel is a major underwater vehicular tunnel in the Hampton Roads region that carries traffic beneath the Elizabeth River between Norfolk and Portsmouth, Virginia.
  • C. Carmel Tunnels
    The Carmel Tunnels are a system of toll road tunnels in Haifa, Israel, that provide a fast east–west route beneath the Carmel mountain range to ease urban traffic congestion.
  • D. San Antonio River Tunnel
    The San Antonio River Tunnel is a major flood-control tunnel in San Antonio, Texas, designed to divert excess river water and protect the downtown and River Walk areas from flooding.
  • E. Hudson–Bergen light rail tunnels
    The Hudson–Bergen light rail tunnels are a set of underground passages in northeastern New Jersey that carry the Hudson–Bergen Light Rail system beneath the Hudson River waterfront and surrounding urban areas.
  • 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_69d6aa9eb9248190b20211772621b4bc completed April 8, 2026, 7:21 p.m.
NER Named-entity recognition batch_69d7e8c36c188190bfa4d5f8e6cbbbea completed April 9, 2026, 5:58 p.m.
NED1 Entity disambiguation (via context triple) batch_69e4971d537c8190ab53a2ca18d643f3 completed April 19, 2026, 8:49 a.m.
NEDg Description generation batch_69e49c09844881908e0d95ba3f239024 completed April 19, 2026, 9:10 a.m.
NED2 Entity disambiguation (via description) batch_69e49e7f8b108190bb69f532adf25809 completed April 19, 2026, 9:21 a.m.
Created at: April 8, 2026, 9:29 p.m.