PO2
E822104
PO2 is the standard U.S. Navy enlisted rank title for Petty Officer Second Class, a non-commissioned officer position above Petty Officer Third Class and below Petty Officer First Class.
All labels observed (1)
| Label | Occurrences |
|---|---|
| PO2 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9784989 — 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: PO2 Context triple: [Petty Officer Second Class (United States Navy), abbreviation, PO2]
-
A.
PPO2
PPO2 is an improved variant of the Proximal Policy Optimization reinforcement learning algorithm, designed for stable and efficient policy gradient training in continuous and discrete control tasks.
-
B.
pXO2
pXO2 is a virulence-associated plasmid of Bacillus anthracis that encodes genes essential for the bacterium’s protective capsule formation.
-
C.
PO
PO is the commonly used abbreviation for Opole University of Technology, a technical university located in Opole, Poland.
-
D.
PO
PO is a UK postcode area covering Portsmouth and surrounding parts of Hampshire and West Sussex.
-
E.
POU
POU is the IATA airport code for Hudson Valley Regional Airport, a public airport serving the Poughkeepsie area in New York’s Hudson Valley.
- 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: PO2 Target entity description: PO2 is the standard U.S. Navy enlisted rank title for Petty Officer Second Class, a non-commissioned officer position above Petty Officer Third Class and below Petty Officer First Class.
-
A.
PPO2
PPO2 is an improved variant of the Proximal Policy Optimization reinforcement learning algorithm, designed for stable and efficient policy gradient training in continuous and discrete control tasks.
-
B.
pXO2
pXO2 is a virulence-associated plasmid of Bacillus anthracis that encodes genes essential for the bacterium’s protective capsule formation.
-
C.
PO
PO is a UK postcode area covering Portsmouth and surrounding parts of Hampshire and West Sussex.
-
D.
PO
PO is the commonly used abbreviation for Opole University of Technology, a technical university located in Opole, Poland.
-
E.
POU
POU is the IATA airport code for Hudson Valley Regional Airport, a public airport serving the Poughkeepsie area in New York’s Hudson Valley.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
U.S. Navy enlisted rank
ⓘ
military rank ⓘ non-commissioned officer rank ⓘ |
| abbreviationStyle | alphanumeric rank code ⓘ |
| belongsToSystem |
U.S. Navy rating and rank system
ⓘ
linked to:
United States Navy ranks
|
| category | mid-level enlisted rank ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| equivalentTo |
Petty Officer Second Class in U.S. Coast Guard
ⓘ
Sergeant in U.S. Army ⓘ
linked to:
Sergeant (United States Army)
Sergeant in U.S. Marine Corps ⓘ Staff Sergeant in U.S. Air Force (pre-2024 E-5) or Senior Airman/Sergeant equivalents depending on era ⓘ |
| fullForm | Petty Officer Second Class ⓘ |
| hasRankCode | PO2 ⓘ |
| higherRank | Petty Officer First Class ⓘ |
| higherRankAbbreviation | PO1 ⓘ |
| insigniaChevronsCount | two chevrons ⓘ |
| insigniaType | chevrons with specialty mark ⓘ |
| language | English ⓘ |
| lowerRank | Petty Officer Third Class ⓘ |
| lowerRankAbbreviation | PO3 ⓘ |
| NATOrankCode | OR-5 ⓘ |
| payGradeSystem | U.S. enlisted pay grades ⓘ |
| promotionFrom | Petty Officer Third Class ⓘ |
| promotionTo | Petty Officer First Class ⓘ |
| rankClass | petty officer ⓘ |
| rankGrade | E-5 ⓘ |
| rankGroup |
NCO
ⓘ
non-commissioned officer ⓘ |
| rankHierarchyPosition |
above Petty Officer Third Class
ⓘ
below Petty Officer First Class ⓘ |
| rankSystem | U.S. Navy enlisted rank structure ⓘ |
| requires |
advancement exam for rating
ⓘ
satisfactory performance evaluations ⓘ time in service and time in grade requirements ⓘ |
| responsibilityLevel | junior non-commissioned officer ⓘ |
| serviceBranch |
U.S. Navy
ⓘ
linked to:
United States Navy
United States Navy ⓘ |
| typicalAddressedAs |
Petty Officer
ⓘ
Petty Officer Second Class ⓘ |
| typicalDuties |
lead small teams or work centers
ⓘ
perform technical specialty tasks ⓘ supervise junior enlisted sailors ⓘ |
| usedBy |
Navy Reserve personnel
ⓘ
linked to:
United States Navy Reserve
active duty Navy personnel ⓘ |
| usedInContext |
Navy rank insignia and uniforms
ⓘ
U.S. naval personnel management ⓘ |
| wearsUniformInsigniaOn |
collar devices
ⓘ
sleeves ⓘ |
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: PO2 Description of subject: PO2 is the standard U.S. Navy enlisted rank title for Petty Officer Second Class, a non-commissioned officer position above Petty Officer Third Class and below Petty Officer First Class.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.