Triple

T2803571
Position Surface form Disambiguated ID Type / Status
Subject Greenwich railway station E53999 entity
Predicate lineServed P6301 FINISHED
Object Greenwich line
The Greenwich line is a suburban railway route in southeast London that connects central London with Greenwich and other nearby areas.
 E300479 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: Greenwich line | Statement: [Greenwich railway station, lineServed, Greenwich line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Greenwich line
Context triple: [Greenwich railway station, lineServed, Greenwich line]
  • A. Prime Meridian
    The Prime Meridian is the internationally recognized zero-degree line of longitude from which all other longitudes and global time zones are measured.
  • B. Humboldt meridian
    The Humboldt meridian is a principal survey meridian used as a reference line for land surveying and mapping in parts of northern California.
  • C. San Bernardino meridian
    The San Bernardino meridian is a principal survey meridian used as a reference line for land surveying and mapping in Southern California and parts of Nevada.
  • D. The Green Line
    The Green Line is a famous 1905 Fauvist portrait by Henri Matisse depicting his wife Amélie with a bold green stripe dividing her face, exemplifying his radical use of color and form.
  • E. International Date Line
    The International Date Line is an imaginary longitudinal line, roughly following the 180th meridian through the Pacific Ocean, where calendar dates change by one day when crossed.
  • 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: Greenwich line
Triple: [Greenwich railway station, lineServed, Greenwich line]
Generated description
The Greenwich line is a suburban railway route in southeast London that connects central London with Greenwich and other nearby areas.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Greenwich line
Target entity description: The Greenwich line is a suburban railway route in southeast London that connects central London with Greenwich and other nearby areas.
  • A. Prime Meridian
    The Prime Meridian is the internationally recognized zero-degree line of longitude from which all other longitudes and global time zones are measured.
  • B. Humboldt meridian
    The Humboldt meridian is a principal survey meridian used as a reference line for land surveying and mapping in parts of northern California.
  • C. San Bernardino meridian
    The San Bernardino meridian is a principal survey meridian used as a reference line for land surveying and mapping in Southern California and parts of Nevada.
  • D. The Green Line
    The Green Line is a famous 1905 Fauvist portrait by Henri Matisse depicting his wife Amélie with a bold green stripe dividing her face, exemplifying his radical use of color and form.
  • E. International Date Line
    The International Date Line is an imaginary longitudinal line, roughly following the 180th meridian through the Pacific Ocean, where calendar dates change by one day when crossed.
  • 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_69ab49dcee188190b5c6eca9ae9e3469 completed March 6, 2026, 9:40 p.m.
NER Named-entity recognition batch_69abde1409148190a06a401185a26b64 completed March 7, 2026, 8:13 a.m.
NED1 Entity disambiguation (via context triple) batch_69afc671964c81908cff1cfbd70c3786 completed March 10, 2026, 7:21 a.m.
NEDg Description generation batch_69afcb9f73588190852ec35db9d9a7fd completed March 10, 2026, 7:43 a.m.
NED2 Entity disambiguation (via description) batch_69afcc0ddc188190a0d79974701556dd completed March 10, 2026, 7:45 a.m.
Created at: March 6, 2026, 9:59 p.m.