Can you give me the best definition for inference in ontology and a method with Jena in Java which allows me to do the test? Thank you!

Ontology: it is a representative model of data of a set of concepts in a domain, as well as the relations between these concepts within this domain. An ontology models a set of knowledge on a domain. One ontologies is established(constituted) of a set of object such as individuals, classes, attributes, relations, events, - See more at: http: // www.loicmathieu.fr/wordpress/index.php/informatique/owl-language-rdf-d-ontolog ie / * sthash. XaGYnW6w.dpufThe language Java is an IT directed programming language object created by James Gosling and Patrick Naughton, employees of Sun Microsystems, with Bill Joy's support (co-founder of Sun Microsystems in), presented officially on Mayrd, to SunWorld.