ILS
E206887
ILS (Instrument Landing System) is a ground-based radio navigation system that provides precise lateral and vertical guidance to aircraft during approach and landing, especially in low-visibility conditions.
All labels observed (3)
| Label | Occurrences |
|---|---|
| ILS canonical | 21 |
| instrument landing system (ILS) | 5 |
| Instrument Landing System | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T1840126 — 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: ILS Context triple: [PGUA, hasNavigationAid, ILS]
-
A.
ILS
ILS is the three-letter ISO 4217 currency code for the Israeli new shekel, the official currency of Israel.
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B.
ATIS
ATIS (Alliance for Telecommunications Industry Solutions) is a leading North American standards development organization that advances global telecommunications and information and communications technology (ICT) networks and services.
-
C.
ATC
ATC (Anatomical Therapeutic Chemical Classification System) is a widely used international system for classifying drugs according to the organ or system they act on and their therapeutic, pharmacological, and chemical properties.
-
D.
ILC
ILC is the commonly used abbreviation for the International Labour Conference, the annual policy-making body of the International Labour Organization that sets international labor standards.
-
E.
WAAS
WAAS (Wide Area Augmentation System) is a satellite-based augmentation system developed by the FAA to improve the accuracy, integrity, and availability of GPS signals for aviation and other precision navigation applications in North America.
- 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: ILS Target entity description: ILS (Instrument Landing System) is a ground-based radio navigation system that provides precise lateral and vertical guidance to aircraft during approach and landing, especially in low-visibility conditions.
-
A.
ILS
ILS is the three-letter ISO 4217 currency code for the Israeli new shekel, the official currency of Israel.
-
B.
ATIS
ATIS (Alliance for Telecommunications Industry Solutions) is a leading North American standards development organization that advances global telecommunications and information and communications technology (ICT) networks and services.
-
C.
ATC
ATC (Anatomical Therapeutic Chemical Classification System) is a widely used international system for classifying drugs according to the organ or system they act on and their therapeutic, pharmacological, and chemical properties.
-
D.
ILC
ILC is the commonly used abbreviation for the International Labour Conference, the annual policy-making body of the International Labour Organization that sets international labor standards.
-
E.
WAAS
WAAS (Wide Area Augmentation System) is a satellite-based augmentation system developed by the FAA to improve the accuracy, integrity, and availability of GPS signals for aviation and other precision navigation applications in North America.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Instrument Landing System
ⓘ
radio navigation system ⓘ |
| abbreviationOf |
Instrument Landing System
ⓘ
linked to:
ILS
|
| alternativeTo |
microwave landing system
ⓘ
satellite-based precision approach systems ⓘ |
| basedOn | ground-based radio signals ⓘ |
| classifiedAs | precision approach aid ⓘ |
| dependsOn | runway alignment ⓘ |
| enables | landings in poor visibility ⓘ |
| fullName |
Instrument Landing System
ⓘ
linked to:
ILS
|
| guides |
aircraft to proper descent path
ⓘ
aircraft to runway centerline ⓘ |
| hasCategory |
Category I
ⓘ
Category II ⓘ Category III ⓘ |
| hasComponent |
approach lighting system
ⓘ
glide slope ⓘ localizer ⓘ marker beacons ⓘ |
| hasSubcategory |
Category IIIA
ⓘ
Category IIIB ⓘ Category IIIC ⓘ |
| improves | landing safety ⓘ |
| installedAt | airports ⓘ |
| introducedIn | 1930s ⓘ |
| operatesOn |
UHF band for glide slope
ⓘ
VHF band for localizer ⓘ |
| provides |
lateral guidance to aircraft
ⓘ
vertical guidance to aircraft ⓘ |
| regulatedBy |
Federal Aviation Administration
ⓘ
International Civil Aviation Organization ⓘ |
| relatedTo |
GBAS (Ground-Based Augmentation System)
ⓘ
RNAV approach procedures ⓘ precision approach radar ⓘ |
| requires |
airborne ILS receiver
ⓘ
ground ILS transmitter equipment ⓘ periodic calibration ⓘ |
| standardizedBy | ICAO Annex 10 ⓘ |
| subjectTo | signal interference ⓘ |
| supports |
autoland operations
ⓘ
precision approach ⓘ |
| usedBy |
commercial airliners
ⓘ
general aviation aircraft ⓘ military aircraft ⓘ |
| usedFor |
aircraft approach
ⓘ
aircraft landing ⓘ |
| usedIn | low-visibility conditions ⓘ |
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: ILS Description of subject: ILS (Instrument Landing System) is a ground-based radio navigation system that provides precise lateral and vertical guidance to aircraft during approach and landing, especially in low-visibility conditions.
Referenced by (30)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Ilopango International Airport (military and general aviation)
linked to: ILS
linked to: ILS
subject linked to:
Greater Binghamton Airport (nearby)
linked to: ILS
linked to: ILS
linked to: ILS
linked to: ILS
linked to: ILS
linked to: ILS
subject linked to:
Fiji’s Nadi International Airport
subject linked to:
YPPH