Triple

T6452045
Position Surface form Disambiguated ID Type / Status
Subject Rhoon E139890 entity
Predicate servedBy P82 FINISHED
Object Rotterdam Metro line D
Rotterdam Metro line D is a rapid transit line in the Rotterdam Metro network that runs south from the city center through suburbs such as Rhoon toward the southern outskirts of the metropolitan area.
E351568 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: Rotterdam Metro line D | Statement: [Rhoon, servedBy, Rotterdam Metro line D]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Rotterdam Metro line D
Context triple: [Rhoon, servedBy, Rotterdam Metro line D]
  • A. Rotterdam Metro
    The Rotterdam Metro is the rapid transit system serving Rotterdam and surrounding municipalities in the Netherlands, providing high-frequency urban and suburban rail connections.
  • B. Amsterdam North–South line
    The Amsterdam North–South line is a major metro route in Amsterdam that runs between the northern and southern parts of the city, significantly improving cross-city public transport connectivity.
  • C. Amsterdam Metro line 54
    Amsterdam Metro line 54 is one of the main rapid transit lines in Amsterdam’s metro network, running from the city center to the southeastern suburbs.
  • D. Amsterdam Metro line 52
    Amsterdam Metro line 52, also known as the North–South Line, is a major rapid transit route in Amsterdam running between the city’s northern and southern districts via the central station.
  • E. Amsterdam Metro line 51
    Amsterdam Metro line 51 was a former hybrid metro–light rail line in Amsterdam that connected the city center with the southern suburbs, notably serving areas like Amstelveen.
  • 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: Rotterdam Metro line D
Triple: [Rhoon, servedBy, Rotterdam Metro line D]
Generated description
Rotterdam Metro line D is a rapid transit line in the Rotterdam Metro network that runs south from the city center through suburbs such as Rhoon toward the southern outskirts of the metropolitan area.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Rotterdam Metro line D
Target entity description: Rotterdam Metro line D is a rapid transit line in the Rotterdam Metro network that runs south from the city center through suburbs such as Rhoon toward the southern outskirts of the metropolitan area.
  • A. Rotterdam Metro chosen
    The Rotterdam Metro is the rapid transit system serving Rotterdam and surrounding municipalities in the Netherlands, providing high-frequency urban and suburban rail connections.
  • B. Amsterdam North–South line
    The Amsterdam North–South line is a major metro route in Amsterdam that runs between the northern and southern parts of the city, significantly improving cross-city public transport connectivity.
  • C. Amsterdam Metro line 54
    Amsterdam Metro line 54 is one of the main rapid transit lines in Amsterdam’s metro network, running from the city center to the southeastern suburbs.
  • D. Amsterdam Metro line 52
    Amsterdam Metro line 52, also known as the North–South Line, is a major rapid transit route in Amsterdam running between the city’s northern and southern districts via the central station.
  • E. Amsterdam Metro line 51
    Amsterdam Metro line 51 was a former hybrid metro–light rail line in Amsterdam that connected the city center with the southern suburbs, notably serving areas like Amstelveen.
  • F. None of above.

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_69c008b301948190a35854e5284dc822 completed March 22, 2026, 3:20 p.m.
NER Named-entity recognition batch_69c069b62cbc81908b7f1a0dc1ed3e1d completed March 22, 2026, 10:14 p.m.
NED1 Entity disambiguation (via context triple) batch_69c67c43893c8190b99130bb9a3afc40 completed March 27, 2026, 12:46 p.m.
NEDg Description generation batch_69c67d7cbdfc8190aac8b557f99e6713 completed March 27, 2026, 12:52 p.m.
NED2 Entity disambiguation (via description) batch_69c67de5620c81909fac3da436c9b600 completed March 27, 2026, 12:53 p.m.
Created at: March 22, 2026, 4:47 p.m.