a.out
E299176
a.out is an older executable and object file format historically used on Unix systems before being largely superseded by formats like ELF.
All labels observed (1)
| Label | Occurrences |
|---|---|
| a.out canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T2792352 — 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: a.out Context triple: [GNU Binutils, supportsFormat, a.out]
-
A.
AUG
AUG is the IATA airport code for Augusta State Airport in Augusta, Maine, United States.
-
B.
AO
AO is the two-letter ISO 3166-1 alpha-2 country code representing Angola in international standards and systems.
-
C.
AO
AO is a UK-based online electricals retailer known for selling appliances and consumer electronics through its e-commerce platform and associated services.
-
D.
AO
AO is the commonly used abbreviation for the Administrative Office of the United States Courts, the federal agency that provides administrative support to the U.S. federal judiciary.
-
E.
AO
AO is the vehicle registration code used on license plates for vehicles registered in Italy’s Aosta Valley region.
- 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: a.out Target entity description: a.out is an older executable and object file format historically used on Unix systems before being largely superseded by formats like ELF.
-
A.
AUG
AUG is the IATA airport code for Augusta State Airport in Augusta, Maine, United States.
-
B.
AO
AO is the two-letter ISO 3166-1 alpha-2 country code representing Angola in international standards and systems.
-
C.
AO
AO is a UK-based online electricals retailer known for selling appliances and consumer electronics through its e-commerce platform and associated services.
-
D.
AO
AO is the commonly used abbreviation for the Administrative Office of the United States Courts, the federal agency that provides administrative support to the U.S. federal judiciary.
-
E.
AO
AO is the vehicle registration code used on license plates for vehicles registered in Italy’s Aosta Valley region.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
binary file format
ⓘ
executable file format ⓘ object file format ⓘ |
| category |
Unix binary format
ⓘ
linker output format ⓘ |
| defaultOutputNameOf |
Unix C compiler
ⓘ
cc ⓘ early gcc ⓘ |
| designedFor | statically linked executables ⓘ |
| fileExtension | .out ⓘ |
| hasHeaderField |
bss segment size
ⓘ
data segment offset ⓘ data segment size ⓘ entry point ⓘ magic number ⓘ relocation info offset ⓘ string table offset ⓘ symbol table offset ⓘ symbol table size ⓘ text segment offset ⓘ text segment size ⓘ |
| hasVariant |
NMAGIC
ⓘ
OMAGIC ⓘ QMAGIC ⓘ ZMAGIC ⓘ |
| historicalRole | standard Unix executable format before ELF ⓘ |
| introducedIn | early Unix versions ⓘ |
| limitation |
architecture-specific layout
ⓘ
limited extensibility ⓘ poor support for shared libraries ⓘ |
| nameOrigin | assembler output ⓘ |
| status | legacy ⓘ |
| stillSupportedBy | some BSD systems (for compatibility) ⓘ |
| supersededBy |
COFF
ⓘ
ELF ⓘ |
| supportsFeature |
relocation information
ⓘ
symbol table ⓘ |
| supportsSegment |
bss segment
ⓘ
data segment ⓘ text segment ⓘ |
| usedOn |
FreeBSD
ⓘ
Minix ⓘ
linked to:
MINIX operating system
NEXTSTEP ⓘ
linked to:
NeXTSTEP
NetBSD ⓘ OpenBSD ⓘ SunOS ⓘ Unix ⓘ early BSD Unix ⓘ early Linux ⓘ |
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: a.out Description of subject: a.out is an older executable and object file format historically used on Unix systems before being largely superseded by formats like ELF.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.