Triple

T33937856
Position Surface form Disambiguated ID Type / Status
Subject Bollman Truss Railroad Bridge E870082 entity
Predicate railroadLineServed P177940 FINISHED
Object Baltimore and Ohio Railroad Washington Branch
The Baltimore and Ohio Railroad Washington Branch is a historic rail line that connected Washington, D.C. to the main B&O Railroad network, playing a key role in early American rail transportation.
 E2076176 NE FINISHED

How this triple was built (3 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: Baltimore and Ohio Railroad Washington Branch | Statement: [Bollman Truss Railroad Bridge, railroadLineServed, Baltimore and Ohio Railroad Washington Branch]
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: Baltimore and Ohio Railroad Washington Branch
Triple: [Bollman Truss Railroad Bridge, railroadLineServed, Baltimore and Ohio Railroad Washington Branch]
Generated description
The Baltimore and Ohio Railroad Washington Branch is a historic rail line that connected Washington, D.C. to the main B&O Railroad network, playing a key role in early American rail transportation.
PD Predicate disambiguation gpt-5-mini-2025-08-07 
Target predicate: railroadLineServed
Context triple: [Bollman Truss Railroad Bridge, railroadLineServed, Baltimore and Ohio Railroad Washington Branch]
  • A. servesCommuterRailLine
    Indicates that a location or facility provides access to and is a stop or station for a commuter rail line.
  • B. railwayTypeServed
    Indicates the type of railway system or service that a given entity (such as a station, line, or facility) is designed to serve or accommodate.
  • C. railwaySystemServed
    Indicates that a railway system provides service to, or operates within, a specified location or area.
  • D. railInfrastructureServed
    Indicates that a rail infrastructure facility or segment is served, accessed, or operated by a particular service, operator, or network.
  • E. hasRailServiceAt
    Indicates that a rail transport service operates at or serves a particular location or facility.
  • 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_69f3499a59788190bff762a891471b31 completed April 30, 2026, 12:22 p.m.
NER Named-entity recognition batch_69f7064e906881909c3186c646145d34 completed May 3, 2026, 8:24 a.m.
NED1 Entity disambiguation (via context triple) batch_6a3689d317b481909288a7249af8e9dd completed June 20, 2026, 12:38 p.m.
NEDg Description generation batch_6a368d972f4c81909b4e5e4bd034b264 completed June 20, 2026, 12:54 p.m.
NED2 Entity disambiguation (via description) batch_6a368e2093b88190a09398f5e3fa664f completed June 20, 2026, 12:57 p.m.
PD Predicate disambiguation batch_69f70100ec1c8190a6b97f50e88891f2 completed May 3, 2026, 8:02 a.m.
PDg Predicate description generation batch_69f7064d37388190993b2a7305a02b9f completed May 3, 2026, 8:24 a.m.
Created at: May 1, 2026, 1:49 a.m.