Triple

T8697999
Position Surface form Disambiguated ID Type / Status
Subject Isle of Man Railway E206448 entity
Predicate formerBranch P12137 FINISHED
Object Douglas–Peel line
The Douglas–Peel line was a historic narrow-gauge railway route on the Isle of Man that connected the island’s capital, Douglas, with the western town of Peel.
 E750283 NE FINISHED

Named-entity recognition

Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.

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: Douglas–Peel line | Statement: [Isle of Man Railway, formerBranch, Douglas–Peel line]

Disambiguation candidates (2 decisions)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Douglas–Peel line
Context triple: [Isle of Man Railway, formerBranch, Douglas–Peel line]
  • A. Weber Line
    The Weber Line is a biogeographical boundary in the Malay Archipelago that marks a transition zone between Asian and Australasian animal species distributions.
  • B. Powell–Hyde line
    The Powell–Hyde line is one of San Francisco’s iconic cable car routes, running from downtown near Union Square over Nob Hill to the waterfront at Fisherman’s Wharf.
  • C. Powell–Mason line
    The Powell–Mason line is one of San Francisco’s historic cable car routes, running between downtown and the Fisherman’s Wharf area and serving as both public transit and a popular tourist attraction.
  • D. Mitre Line
    The Mitre Line is a major commuter rail service in the Buenos Aires metropolitan area that links the city center with several northern suburbs.
  • E. Buxton line
    The Buxton line is a railway route in northern England that connects Manchester with the town of Buxton through the Peak District.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Douglas–Peel line
Target entity description: The Douglas–Peel line was a historic narrow-gauge railway route on the Isle of Man that connected the island’s capital, Douglas, with the western town of Peel.
  • A. Weber Line
    The Weber Line is a biogeographical boundary in the Malay Archipelago that marks a transition zone between Asian and Australasian animal species distributions.
  • B. Powell–Hyde line
    The Powell–Hyde line is one of San Francisco’s iconic cable car routes, running from downtown near Union Square over Nob Hill to the waterfront at Fisherman’s Wharf.
  • C. Powell–Mason line
    The Powell–Mason line is one of San Francisco’s historic cable car routes, running between downtown and the Fisherman’s Wharf area and serving as both public transit and a popular tourist attraction.
  • D. Mitre Line
    The Mitre Line is a major commuter rail service in the Buenos Aires metropolitan area that links the city center with several northern suburbs.
  • E. Buxton line
    The Buxton line is a railway route in northern England that connects Manchester with the town of Buxton through the Peak District.
  • F. None of above. chosen

How the object was described

The object's one-sentence description was generated by prompting gpt-5.1 with the object name and this triple as context.

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: Douglas–Peel line
Triple: [Isle of Man Railway, formerBranch, Douglas–Peel line]
Generated description
The Douglas–Peel line was a historic narrow-gauge railway route on the Isle of Man that connected the island’s capital, Douglas, with the western town of Peel.

Provenance (5 batches)

Stage Batch ID Job type Status
creating batch_69ca83555b6c8190abe930dd397e863b elicitation completed
NER batch_69cc58af50408190a3b81100a759795e ner completed
NED1 batch_69cef4060410819086f928bda95e0273 ned_source_triple completed
NED2 batch_69cef6aafad08190b983549727d7ac8a ned_description completed
NEDg batch_69cef5fe6e48819086186f44d078137d nedg completed
Created at: March 30, 2026, 6:34 p.m.