Nematoda
E16389
Nematoda is a diverse phylum of elongated, unsegmented roundworms found in nearly every habitat on Earth, many of which are important parasites of plants, animals, and humans.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Nematoda canonical | 38 |
| Nematoda Rudolphi, 1808 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T72393 — 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: Nematoda Context triple: [Animalia, includesPhylum, Nematoda]
-
A.
Platyhelminthes
Platyhelminthes is a phylum of simple, soft-bodied, bilaterally symmetrical invertebrates commonly known as flatworms, which includes both free-living and parasitic species.
-
B.
Cnidaria
Cnidaria is a phylum of mostly marine animals, including jellyfish, corals, sea anemones, and hydras, characterized by radial symmetry and specialized stinging cells called cnidocytes.
-
C.
Animalia
Animalia is the biological kingdom comprising all multicellular animals, characterized by eukaryotic, heterotrophic organisms that typically have specialized tissues and the ability to move.
-
D.
Protista
Protista is a diverse kingdom of mostly single-celled eukaryotic organisms that are neither animals, plants, nor fungi.
-
E.
Echinodermata
Echinodermata is a phylum of marine invertebrates that includes starfish, sea urchins, sand dollars, and sea cucumbers, characterized by radial symmetry and a water vascular system.
- 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: Nematoda Target entity description: Nematoda is a diverse phylum of elongated, unsegmented roundworms found in nearly every habitat on Earth, many of which are important parasites of plants, animals, and humans.
-
A.
Platyhelminthes
Platyhelminthes is a phylum of simple, soft-bodied, bilaterally symmetrical invertebrates commonly known as flatworms, which includes both free-living and parasitic species.
-
B.
Cnidaria
Cnidaria is a phylum of mostly marine animals, including jellyfish, corals, sea anemones, and hydras, characterized by radial symmetry and specialized stinging cells called cnidocytes.
-
C.
Animalia
Animalia is the biological kingdom comprising all multicellular animals, characterized by eukaryotic, heterotrophic organisms that typically have specialized tissues and the ability to move.
-
D.
Protista
Protista is a diverse kingdom of mostly single-celled eukaryotic organisms that are neither animals, plants, nor fungi.
-
E.
Echinodermata
Echinodermata is a phylum of marine invertebrates that includes starfish, sea urchins, sand dollars, and sea cucumbers, characterized by radial symmetry and a water vascular system.
- F. None of above. chosen
Statements (66)
| Predicate | Object |
|---|---|
| instanceOf |
phylum
ⓘ
taxon ⓘ |
| bodyCavity | pseudocoelomate ⓘ |
| bodyShape | elongated ⓘ |
| bodySymmetry | bilateral symmetry ⓘ |
| causesDisease |
ascariasis
ⓘ
enterobiasis ⓘ hookworm infection ⓘ lymphatic filariasis ⓘ onchocerciasis ⓘ plant cyst nematode disease ⓘ plant root-knot disease ⓘ trichinellosis ⓘ |
| circulatorySystem | no specialized circulatory system ⓘ |
| clade | Protostomia ⓘ |
| commonName | roundworms ⓘ |
| cuticleType | chitinous cuticle ⓘ |
| digestiveSystem | complete digestive tract ⓘ |
| distribution | cosmopolitan ⓘ |
| ecologicalRole |
decomposer
ⓘ
parasite ⓘ predator ⓘ |
| eggType | shelled eggs ⓘ |
| estimatedSpeciesCount |
hundreds of thousands of species predicted
ⓘ
over 25000 described species ⓘ |
| excretorySystem | renette cells ⓘ |
| feedingType |
bacterivore
ⓘ
fungivore ⓘ herbivore ⓘ omnivore ⓘ parasite ⓘ |
| fertilization | internal fertilization ⓘ |
| genomeModelOrganism | Caenorhabditis elegans ⓘ |
| habitat |
animal tissues
ⓘ
freshwater environments ⓘ marine environments ⓘ plant tissues ⓘ sediments ⓘ soil ⓘ |
| includesTaxon |
Ancylostoma duodenale
ⓘ
Ascaris lumbricoides ⓘ Brugia malayi ⓘ Caenorhabditis elegans ⓘ Enterobius vermicularis ⓘ Heterodera glycines ⓘ Meloidogyne incognita ⓘ Necator americanus ⓘ Onchocerca volvulus ⓘ Trichinella spiralis ⓘ Wuchereria bancrofti ⓘ |
| kingdom | Animalia ⓘ |
| locomotion | longitudinal muscle contraction ⓘ |
| molting | ecdysis ⓘ |
| nervousSystem | nerve ring ⓘ |
| notableSpecies | Caenorhabditis elegans ⓘ |
| parasitizes |
animals
ⓘ
humans ⓘ plants ⓘ |
| reproduction | sexual reproduction ⓘ |
| respiration | cutaneous respiration ⓘ |
| scientificNameAuthorship | Rudolphi, 1808 ⓘ |
| segmentation | unsegmented ⓘ |
| sexes | dioecious ⓘ |
| skeletonType | hydrostatic skeleton ⓘ |
| superphylum | Ecdysozoa ⓘ |
| taxonRank | phylum ⓘ |
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: Nematoda Description of subject: Nematoda is a diverse phylum of elongated, unsegmented roundworms found in nearly every habitat on Earth, many of which are important parasites of plants, animals, and humans.
Referenced by (39)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Nematoda