Triple

T5602741
Position Surface form Disambiguated ID Type / Status
Subject Illinois Central Railroad E147157 entity
Predicate formerTickerSymbol P23749 FINISHED
Object IC
IC was the stock ticker symbol used by the historic Illinois Central Railroad, a major U.S. railroad that played a key role in Midwestern and Southern rail transport.
 E533777 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: IC | Statement: [Illinois Central Railroad, formerTickerSymbol, IC]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: IC
Context triple: [Illinois Central Railroad, formerTickerSymbol, IC]
  • A. IC
    IC is a category of long-distance passenger trains in Poland, operated by PKP Intercity and offering intercity connections between major cities.
  • B. IC
    IC is a common abbreviation for Iowa City, a university-centered community best known as the home of the University of Iowa and its renowned Writers' Workshop.
  • C. ICA
    ICA is a contemporary art museum in Philadelphia known for its innovative exhibitions and support of emerging artists.
  • D. ICA
    The International Cooperation Administration (ICA) was a U.S. government agency responsible for administering foreign economic and technical assistance programs during the 1950s.
  • E. CI
    CI is the IATA airline designator for China Airlines, the flag carrier of Taiwan.
  • 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: IC
Triple: [Illinois Central Railroad, formerTickerSymbol, IC]
Generated description
IC was the stock ticker symbol used by the historic Illinois Central Railroad, a major U.S. railroad that played a key role in Midwestern and Southern rail transport.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: IC
Target entity description: IC was the stock ticker symbol used by the historic Illinois Central Railroad, a major U.S. railroad that played a key role in Midwestern and Southern rail transport.
  • A. IC
    IC is a common abbreviation for Iowa City, a university-centered community best known as the home of the University of Iowa and its renowned Writers' Workshop.
  • B. IC
    IC is a category of long-distance passenger trains in Poland, operated by PKP Intercity and offering intercity connections between major cities.
  • C. ICA
    ICA is a contemporary art museum in Philadelphia known for its innovative exhibitions and support of emerging artists.
  • D. ICA
    The International Cooperation Administration (ICA) was a U.S. government agency responsible for administering foreign economic and technical assistance programs during the 1950s.
  • E. CI
    CI is the IATA airline designator for China Airlines, the flag carrier of Taiwan.
  • 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_69c009043d648190a7af89698ccf1e3e completed March 22, 2026, 3:21 p.m.
NER Named-entity recognition batch_69c020dbd6dc8190ba011876c205754e completed March 22, 2026, 5:03 p.m.
NED1 Entity disambiguation (via context triple) batch_69c0287649cc8190ae356790dd993973 completed March 22, 2026, 5:35 p.m.
NEDg Description generation batch_69c0350eb53081909dc573fefa3e7f0a completed March 22, 2026, 6:29 p.m.
NED2 Entity disambiguation (via description) batch_69c036f0edb48190bfa74f7f2c9d9ab1 completed March 22, 2026, 6:37 p.m.
Created at: March 22, 2026, 3:39 p.m.