Omicron
E105675
Omicron is a vowel letter of the Greek alphabet, historically representing a short "o" sound and used today in various scientific and mathematical contexts.
All labels observed (2)
How this entity was disambiguated
This entity first appeared as the object of triple T898812 — 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: Omicron Context triple: [Greek alphabet, hasLetter, Omicron]
-
A.
Leqembi
Leqembi is an Alzheimer’s disease drug (lecanemab) that targets amyloid-beta plaques to slow cognitive decline in early-stage patients.
-
B.
Northgrippian
The Northgrippian is the middle age of the Holocene epoch, defined by a significant global cooling event that occurred around 4,200 years ago.
-
C.
Janssen COVID-19 Vaccine
The Janssen COVID-19 Vaccine is a single-dose, viral vector-based coronavirus vaccine developed by Janssen Pharmaceuticals, a subsidiary of Johnson & Johnson, for the prevention of COVID-19.
-
D.
DELTA
DELTA is the radio callsign used by pilots and air traffic control to identify and communicate with Delta Air Lines flights.
-
E.
Vumerity
Vumerity is an oral prescription medication used to treat relapsing forms of multiple sclerosis in adults.
- 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: Omicron Target entity description: Omicron is a vowel letter of the Greek alphabet, historically representing a short "o" sound and used today in various scientific and mathematical contexts.
-
A.
Leqembi
Leqembi is an Alzheimer’s disease drug (lecanemab) that targets amyloid-beta plaques to slow cognitive decline in early-stage patients.
-
B.
Northgrippian
The Northgrippian is the middle age of the Holocene epoch, defined by a significant global cooling event that occurred around 4,200 years ago.
-
C.
Janssen COVID-19 Vaccine
The Janssen COVID-19 Vaccine is a single-dose, viral vector-based coronavirus vaccine developed by Janssen Pharmaceuticals, a subsidiary of Johnson & Johnson, for the prevention of COVID-19.
-
D.
DELTA
DELTA is the radio callsign used by pilots and air traffic control to identify and communicate with Delta Air Lines flights.
-
E.
Vumerity
Vumerity is an oral prescription medication used to treat relapsing forms of multiple sclerosis in adults.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
Greek letter
ⓘ
vowel letter ⓘ |
| alphabetFamily | Greek ⓘ |
| appearsIn |
Greek numeral system
ⓘ
Greek orthography ⓘ |
| category | Greek vowel ⓘ |
| contrastedWith | Omega ⓘ |
| derivedFrom |
Proto-Sinaitic letter ʿayin
ⓘ
surface form:
Phoenician letter Ayin
|
| directionality | left-to-right ⓘ |
| hasCase |
lowercase
ⓘ
uppercase ⓘ |
| hasLowercaseName | omicron ⓘ |
| hasStrokeCount | 1 ⓘ |
| hasUnicodeCodePoint |
U+039F
ⓘ
U+03BF ⓘ |
| hasUppercaseName | OMICRON ⓘ |
| historicalSoundValue | /o/ ⓘ |
| ISOBasicLatinCorrespondence | O ⓘ |
| isVowel | true ⓘ |
| languageFamilyUsage | Hellenic languages ⓘ |
| lowercaseForm | ο ⓘ |
| nameInGreek |
Omicron
self-linksurface differs
ⓘ
surface form:
Όμικρον
|
| numericValueInGreekNumerals | 70 ⓘ |
| orthographicRole | represents /o/ phoneme in Greek ⓘ |
| phoneticCategory | mid back rounded vowel ⓘ |
| positionInAlphabet | 15 ⓘ |
| relatedTo |
Cyrillic letter О
ⓘ
Latin letter O ⓘ |
| representsQuantity | short o as opposed to long ō ⓘ |
| representsSound | short o ⓘ |
| script | Greek alphabet ⓘ |
| scriptType | alphabetic ⓘ |
| scriptUsageStatus | in current use ⓘ |
| shape | circular ⓘ |
| transliteration | O ⓘ |
| uppercaseForm | Ο ⓘ |
| usedAsSymbolFor | Big-O notation (as letter O, historically linked) ⓘ |
| usedIn |
Greek language
ⓘ
astronomy ⓘ linguistics ⓘ mathematics ⓘ science ⓘ statistics ⓘ |
| usedInContext |
classical Greek
ⓘ
modern Greek ⓘ |
| writingSystem | Greek script ⓘ |
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: Omicron Description of subject: Omicron is a vowel letter of the Greek alphabet, historically representing a short "o" sound and used today in various scientific and mathematical contexts.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Όμικρον