IC
E533777
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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| IC canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T5602741 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
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.
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
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
railroad company
ⓘ
stock ticker symbol ⓘ |
| abbreviation | IC ⓘ |
| alsoKnownAs |
Illinois Central
ⓘ
linked to:
Illinois Central Railroad
|
| country |
United States
ⓘ
linked to:
United States of America
|
| hasStockTicker | IC ⓘ |
| headquartersLocation |
Chicago, Illinois
ⓘ
linked to:
Chicago, Illinois, United States
|
| historicalSignificance | major U.S. railroad ⓘ |
| industry | rail transport ⓘ |
| notableFor | north–south main line in the central United States ⓘ |
| operatedInRegion |
Midwestern United States
ⓘ
Southern United States ⓘ |
| partOf | U.S. railroad network ⓘ |
| playedKeyRoleIn |
Midwestern rail transport
ⓘ
Southern rail transport ⓘ |
| refersTo | Illinois Central Railroad ⓘ |
| servedState |
Illinois
ⓘ
Iowa ⓘ Kentucky ⓘ Louisiana ⓘ Mississippi ⓘ Tennessee ⓘ Wisconsin ⓘ |
| status | historic railroad ⓘ |
| stockExchangeContext |
United States
ⓘ
linked to:
United States of America
|
| tickerFor | Illinois Central Railroad ⓘ |
| transportMode |
freight rail
ⓘ
passenger rail ⓘ |
| usedBy | Illinois Central Railroad ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: IC Description of subject: 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.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.