Javan rhinoceros
E122014
The Javan rhinoceros is one of the world’s rarest and most endangered large mammals, a critically threatened rhino species now surviving only in a single population in Indonesia.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Javan rhinoceros canonical | 2 |
| Rhinoceros sondaicus | 2 |
| Javan rhino | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1063385 — 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: Javan rhinoceros Context triple: [Ujung Kulon National Park, primarySpeciesOfConcern, Javan rhinoceros]
-
A.
Sumatran rhinoceros
The Sumatran rhinoceros is a critically endangered, small and hairy rhino species native to Southeast Asian forests, known as the most threatened of all living rhinoceroses.
-
B.
northern white rhinoceros
The northern white rhinoceros is a critically endangered subspecies of white rhino, now functionally extinct in the wild with only a few individuals remaining under intensive human protection.
-
C.
Sumatran tiger
The Sumatran tiger is a critically endangered, small-bodied subspecies of tiger native to the Indonesian island of Sumatra, known for its dark, closely spaced stripes and unique adaptation to dense tropical forests.
-
D.
Eda Rhinos
Eda Rhinos is a professional baseball team based in Taiwan, known for having briefly featured MLB star Manny Ramirez on its roster.
-
E.
Bornean pygmy elephant
The Bornean pygmy elephant is a small, forest-dwelling subspecies of Asian elephant native to Borneo, known for its relatively gentle temperament, long tail, and critically threatened status due to habitat loss and human conflict.
- 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: Javan rhinoceros Target entity description: The Javan rhinoceros is one of the world’s rarest and most endangered large mammals, a critically threatened rhino species now surviving only in a single population in Indonesia.
-
A.
Sumatran rhinoceros
The Sumatran rhinoceros is a critically endangered, small and hairy rhino species native to Southeast Asian forests, known as the most threatened of all living rhinoceroses.
-
B.
northern white rhinoceros
The northern white rhinoceros is a critically endangered subspecies of white rhino, now functionally extinct in the wild with only a few individuals remaining under intensive human protection.
-
C.
Sumatran tiger
The Sumatran tiger is a critically endangered, small-bodied subspecies of tiger native to the Indonesian island of Sumatra, known for its dark, closely spaced stripes and unique adaptation to dense tropical forests.
-
D.
Eda Rhinos
Eda Rhinos is a professional baseball team based in Taiwan, known for having briefly featured MLB star Manny Ramirez on its roster.
-
E.
Bornean pygmy elephant
The Bornean pygmy elephant is a small, forest-dwelling subspecies of Asian elephant native to Borneo, known for its relatively gentle temperament, long tail, and critically threatened status due to habitat loss and human conflict.
- F. None of above. chosen
Statements (52)
| Predicate | Object |
|---|---|
| instanceOf |
critically endangered species
ⓘ
mammal ⓘ rhinoceros species ⓘ |
| activityPattern | mostly crepuscular and nocturnal ⓘ |
| averageBodyMass | 900–2,300 kg ⓘ |
| averageHeadBodyLength | 3–3.2 m ⓘ |
| averageShoulderHeight | 1.4–1.7 m ⓘ |
| binomialName |
Javan rhinoceros
self-linksurface differs
ⓘ
surface form:
Rhinoceros sondaicus
|
| captiveStatus | no known individuals in captivity ⓘ |
| class | Mammalia ⓘ |
| commonName |
Javan rhinoceros
self-linksurface differs
ⓘ
surface form:
Javan rhino
lesser one-horned rhinoceros ⓘ |
| conservationConcern |
genetic bottleneck
ⓘ
very small population size ⓘ |
| conservationPriority | one of the world’s most endangered large mammals ⓘ |
| currentWildRange | Ujung Kulon National Park ⓘ |
| currentWildRangeCountry | Indonesia ⓘ |
| diet | herbivorous ⓘ |
| estimatedMatureIndividuals | fewer than 100 ⓘ |
| family | Rhinocerotidae ⓘ |
| feedingType | browser ⓘ |
| genus | Rhinoceros ⓘ |
| gestationPeriod | about 15–16 months ⓘ |
| habitat |
dense lowland forest
ⓘ
mud wallows ⓘ tropical rainforest ⓘ wetlands ⓘ |
| historicalRange |
Java
ⓘ
Sumatra ⓘ mainland Southeast Asia ⓘ northeastern India ⓘ |
| hornCount | 1 ⓘ |
| hornMaterial | keratin ⓘ |
| interbirthInterval | about 4–5 years ⓘ |
| IUCNRedListCategory | CR ⓘ |
| IUCNStatus | Critically Endangered ⓘ |
| kingdom | Animalia ⓘ |
| mainFood |
leaves
ⓘ
shoots ⓘ twigs ⓘ |
| nativeRange | Southeast Asia ⓘ |
| offspringPerBirth | usually one calf ⓘ |
| order | Perissodactyla ⓘ |
| phylum | Chordata ⓘ |
| populationStructure | singleWildPopulation ⓘ |
| primaryThreat |
habitat loss
ⓘ
poaching ⓘ |
| reproduction | viviparous ⓘ |
| skinDescription | thick gray-brown skin with folds ⓘ |
| socialBehavior | mostly solitary ⓘ |
| taxonRank | species ⓘ |
| typicalLifespanWild | 30–45 years ⓘ |
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: Javan rhinoceros Description of subject: The Javan rhinoceros is one of the world’s rarest and most endangered large mammals, a critically threatened rhino species now surviving only in a single population in Indonesia.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Rhinoceros sondaicus
this entity surface form:
Javan rhino
this entity surface form:
Rhinoceros sondaicus