PLL
E902129
PLL is the stock ticker symbol for Pall Corporation, a global company specializing in filtration, separation, and purification technologies.
All labels observed (1)
| Label | Occurrences |
|---|---|
| PLL canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T11073704 — 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: PLL Context triple: [Pall Corporation, tickerSymbol, PLL]
-
A.
RPLL
RPLL is the ICAO airport code for Ninoy Aquino International Airport, the main international gateway serving Metro Manila in the Philippines.
-
B.
PLY
PLY is the National Rail station code for Plymouth railway station, a major rail hub in Plymouth, Devon, England.
-
C.
P Control
"P Control" is a funk-infused song by Prince that opens his 1995 album *The Gold Experience* and is known for its explicit, empowering lyrics about female independence and sexuality.
-
D.
PI
PI is the vehicle registration code used on license plates for the district of Pinneberg in the German state of Schleswig-Holstein.
-
E.
PI
PI is a leading independent research institute in Waterloo, Canada, dedicated to advancing fundamental theoretical physics and fostering scientific collaboration and education.
- 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: PLL Target entity description: PLL is the stock ticker symbol for Pall Corporation, a global company specializing in filtration, separation, and purification technologies.
-
A.
RPLL
RPLL is the ICAO airport code for Ninoy Aquino International Airport, the main international gateway serving Metro Manila in the Philippines.
-
B.
PLY
PLY is the National Rail station code for Plymouth railway station, a major rail hub in Plymouth, Devon, England.
-
C.
P Control
"P Control" is a funk-infused song by Prince that opens his 1995 album *The Gold Experience* and is known for its explicit, empowering lyrics about female independence and sexuality.
-
D.
PI
PI is a leading independent research institute in Waterloo, Canada, dedicated to advancing fundamental theoretical physics and fostering scientific collaboration and education.
-
E.
PI
PI is the vehicle registration code used on license plates for the district of Pinneberg in the German state of Schleswig-Holstein.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
company
ⓘ
company ⓘ manufacturing company ⓘ public company ⓘ stock ticker symbol ⓘ technology company ⓘ |
| acquiredBy | Danaher Corporation ⓘ |
| acquisitionAnnounced | 2015 ⓘ |
| acquisitionCompleted | 2015 ⓘ |
| acquisitionValue | approximately 13.8 billion US dollars ⓘ |
| coreTechnology |
microfiltration
ⓘ
separation media ⓘ ultrafiltration ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
United States ⓘ
linked to:
United States of America
|
| founded | 1946 ⓘ |
| foundedBy | David B. Pall ⓘ |
| hasApplicationArea |
environmental protection
ⓘ
industrial process filtration ⓘ laboratory research ⓘ medical and healthcare ⓘ water treatment ⓘ |
| hasBusinessModel | business-to-business ⓘ |
| hasFounderBackground | chemist ⓘ |
| headquartersLocation |
Port Washington, New York
ⓘ
linked to:
Port Washington
|
| industry |
filtration
ⓘ
purification technologies ⓘ separation technologies ⓘ |
| listedOn | New York Stock Exchange ⓘ |
| offers |
consumable filtration products
ⓘ
engineered filtration systems ⓘ service and maintenance for filtration systems ⓘ |
| productType |
filters
ⓘ
filtration systems ⓘ membranes ⓘ purification systems ⓘ |
| represents | Pall Corporation ⓘ |
| scope | global ⓘ |
| servesIndustry |
aerospace
ⓘ
biopharmaceuticals ⓘ food and beverage ⓘ industrial manufacturing ⓘ microelectronics ⓘ |
| specializesIn |
filtration
ⓘ
purification ⓘ separation ⓘ |
| stockTicker | PLL ⓘ |
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: PLL Description of subject: PLL is the stock ticker symbol for Pall Corporation, a global company specializing in filtration, separation, and purification technologies.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
PLL