@prefix rdf: . @prefix owl: . @prefix rdfs: . @prefix xml: . @prefix xsd: . a owl:Ontology; "14 September 2026"; "c0599beca8df55873a1ab061dee64e52c510c6a0"; rdfs:comment "An ontology developed for representing crop energy data."; owl:versionInfo "1.0" . a owl:AnnotationProperty . a owl:AnnotationProperty . a owl:ObjectProperty; rdfs:domain ; rdfs:range ; rdfs:comment "The physical units of a quantity."; rdfs:isDefinedBy . a owl:ObjectProperty; rdfs:domain _:6dba20; rdfs:range ; rdfs:comment "The value of a property that includes a numeric value and a unit."; rdfs:isDefinedBy . _:6dba20 a owl:Class; owl:unionOf _:6dba30 . _:6dba30 rdf:first ; rdf:rest _:6dba40 . _:6dba40 rdf:first ; rdf:rest _:6dba50 . _:6dba50 rdf:first ; rdf:rest _:6dba60 . _:6dba60 rdf:first ; rdf:rest rdf:nil . a owl:ObjectProperty; rdfs:domain ; rdfs:range ; rdfs:comment "A relation that defines the Crop Surface Power Density of a certain crop."; rdfs:isDefinedBy . a owl:ObjectProperty; rdfs:domain ; rdfs:range ; rdfs:comment "A relation that defines the Annual Yield of a certain crop."; rdfs:isDefinedBy . a owl:ObjectProperty; rdfs:domain ; rdfs:range ; rdfs:comment "A relation that defines the Gross Calorific Value of a certain crop."; rdfs:isDefinedBy . a owl:ObjectProperty; rdfs:domain ; rdfs:range ; rdfs:comment "A relation that defines the Net Calorific Value of a certain crop."; rdfs:isDefinedBy . a owl:ObjectProperty; rdfs:domain ; rdfs:range ; rdfs:comment "Specifies which Land Use Code (LUcode) this entity belongs to."; rdfs:isDefinedBy . a owl:ObjectProperty; rdfs:domain _:6dba70; rdfs:range ; rdfs:comment "A relation that defines the weblink of an entity."; rdfs:isDefinedBy . _:6dba70 a owl:Class; owl:unionOf _:6dba80 . _:6dba80 rdf:first ; rdf:rest _:6dba90 . _:6dba90 rdf:first ; rdf:rest _:6dbaa0 . _:6dbaa0 rdf:first ; rdf:rest rdf:nil . a owl:DatatypeProperty; rdfs:domain ; rdfs:comment "The numerical value of a quantity."; rdfs:isDefinedBy . a owl:DatatypeProperty; rdfs:domain ; rdfs:range xsd:string; rdfs:comment "The address of a web page describing a resource."; rdfs:isDefinedBy . a owl:DatatypeProperty; rdfs:domain ; rdfs:range xsd:string; rdfs:comment "The date when a web page was accessed."; rdfs:isDefinedBy . a owl:Class; rdfs:isDefinedBy . a owl:Class; rdfs:isDefinedBy . a owl:Class; rdfs:subClassOf ; rdfs:comment "Barley is part of the grass family; it is a cereal grain which is frequently grown in regions with temperate climates."; rdfs:isDefinedBy . a owl:Class; rdfs:subClassOf ; rdfs:comment "Beet is a plant. The species includes sugar beet (used to produce table sugar) and beetroot (a root vegetable)."; rdfs:isDefinedBy . a owl:Class; rdfs:subClassOf ; rdfs:comment "Cabbage is a biennial plant, which is cultvated as an�annual vegetable crop. Heads of cabbages consist of many leaves."; rdfs:isDefinedBy . a owl:Class; rdfs:subClassOf ; rdfs:comment "Carrot is an orange root vegetable. It can be found in other colours such as purple, black, red, white, and yellow."; rdfs:isDefinedBy . a owl:Class; rdfs:subClassOf ; rdfs:comment "Chicory is a woody plant, belonging to the dandelion family. It is a perennial plant with bright blue flowers."; rdfs:isDefinedBy . a owl:Class; rdfs:subClassOf _:6dbab0, _:6dbac0, _:6dbad0, _:6dbae0, _:6dbaf0; rdfs:comment "A�crop�is a plant or animal product which can be cultivated.�Raw harvested material as well as its products can be reffered to as crops. In OntoCropEnergy, exclusively plant crops are considered."; rdfs:isDefinedBy . _:6dbab0 a owl:Restriction; owl:onProperty ; owl:allValuesFrom . _:6dbac0 a owl:Restriction; owl:onProperty ; owl:qualifiedCardinality "1"^^xsd:nonNegativeInteger; owl:onClass . _:6dbad0 a owl:Restriction; owl:onProperty ; owl:qualifiedCardinality "1"^^xsd:nonNegativeInteger; owl:onClass . _:6dbae0 a owl:Restriction; owl:onProperty ; owl:qualifiedCardinality "1"^^xsd:nonNegativeInteger; owl:onClass . _:6dbaf0 a owl:Restriction; owl:onProperty ; owl:qualifiedCardinality "1"^^xsd:nonNegativeInteger; owl:onClass . a owl:Class; rdfs:subClassOf ; rdfs:comment "Crop Surface Power Density is the (bio)power available per unit land area of a given crop. It is a form of Surface Power Density, based on the surface of land used to grow crops, where the power measured is that provided by the crops."; rdfs:isDefinedBy . a owl:Class; rdfs:comment "In agriculture, the yield is the amount of product obtained (e.g. crop grown) per unit area of land. It can be defined on an annual basis as an aggregated value, or as a quantity which varies with time (e.g. seasonally). It is also known as agricultural productivity or agricultural output."; rdfs:isDefinedBy . a owl:Class; rdfs:subClassOf ; rdfs:comment "Field beans are a variety of Vicia faba with smaller, harder seeds. Vicia faba is a species of flowering plant in the pea and bean family."; rdfs:isDefinedBy . a owl:Class; rdfs:subClassOf ; rdfs:comment "Green beans are the unripe fruit of the Phaseolus vulgaris plant. Green beans are also known as string beans, French beans, snap beans, and haricot vert (French)."; rdfs:isDefinedBy . a owl:Class; rdfs:comment "A property of a substance which describes the amount of heat energy released upon combustion of a specified amount, bringing all the products of combustion back to the original pre-combustion temperature, and in particular condensing any vapour produced. This quantity is a particular type of heating value, which is also known as higher heating value (HHV) or gross energy or upper heating value or higher calorific value (HCV)."; rdfs:isDefinedBy . a owl:Class; rdfs:subClassOf ; rdfs:comment "Lettuce is a plant in the daisy family. It is generally produced for its leaves, but also more rarely for its stem and seeds. It is an annual plant."; rdfs:isDefinedBy . a owl:Class; rdfs:subClassOf ; rdfs:comment "Linseed, also known as flax, is a flowering plant. In temperate climates, it is grown as a food and fiber crop."; rdfs:isDefinedBy . a owl:Class; rdfs:subClassOf ; rdfs:comment "Maize is a cereal grain, which also known as corn. It is grown for its leafy stalks which yield kernels or seeds, which are fruits."; rdfs:isDefinedBy . a owl:Class; rdfs:subClassOf ; rdfs:comment "Miscanthus, also known as silvergrass, is a genus of plants in the grass family. A number of different species of miscanthus exist."; rdfs:isDefinedBy . a owl:Class; rdfs:comment "A property of a substance which describes the amount of heat energy released upon combustion of a specified amount, without condensing any water vapour produced. It can be defined by bringing all the products of combustion back to a specified temperature. This quantity is a particular type of heating value, which is also known as lower heating value (LHV) or lower calorific value (LCV)."; rdfs:isDefinedBy . a owl:Class; rdfs:subClassOf ; rdfs:comment "The oat is a cereal grain grown for its seed, which are referred to as oats."; rdfs:isDefinedBy . a owl:Class; rdfs:subClassOf ; rdfs:comment "Rapeseed comprises winter and spring oilseed, vegetable and fodder rape. It is a yellow plant that is part of the mustard or cabbage family, grown for its oil-rich seed."; rdfs:isDefinedBy . a owl:Class; rdfs:subClassOf ; rdfs:comment "Onion is a very commonly cultivated vegetable."; rdfs:isDefinedBy . a owl:Class; rdfs:subClassOf ; rdfs:comment "Peas are small spherical seeds of the pod fruit Pisum sativum and they can be green or yellow. Botanically speaking, pea pods are fruit."; rdfs:isDefinedBy . a owl:Class; rdfs:subClassOf ; rdfs:comment "Potato is a starchy tuber of the Solanum tuberosum plant."; rdfs:isDefinedBy . a owl:Class; rdfs:subClassOf ; rdfs:comment "Rye is a grass which is grown as a grain, a cover crop and a forage crop. It belongs to the wheat tribe and is closely related to wheat and barley."; rdfs:isDefinedBy . a owl:Class; rdfs:subClassOf ; rdfs:comment "Strawberry is a hybrid species grown for their fruit."; rdfs:isDefinedBy . a owl:Class; rdfs:subClassOf ; rdfs:comment "Sunflower is a large flowering plant, cultivated for its oil and fruits."; rdfs:isDefinedBy . a owl:Class; rdfs:comment "Surface Power Density is the power per unit area of a given surface. This is also known as specific power or power density, although these terms can have different definitions."; rdfs:isDefinedBy . a owl:Class; rdfs:subClassOf ; rdfs:comment "Tomato is the edible berry of the Solanum lycopersicum plant (also called a tomato plant)."; rdfs:isDefinedBy . a owl:Class; rdfs:subClassOf ; rdfs:comment "Triticale is a hybrid of wheat and rye. It combines the favourable aspects of wheat with those of rye."; rdfs:isDefinedBy . a owl:Class; rdfs:subClassOf ; rdfs:comment "Turnip is a root vegetable that is grown in temperate climates for its taproot."; rdfs:isDefinedBy . a owl:Class; rdfs:subClassOf ; rdfs:comment "Wheat is a grass that is produced for its seed, which is a type of cereal grain. It is a very prominent food worldwide."; rdfs:isDefinedBy . a owl:Class . a owl:Class .