Hi,
Regarding question 1, 
the  DBpedia ontology is available here http://wiki.dbpedia.org/services-resources/ontology , with the link to the ontology at http://downloads.dbpedia.org/2014/dbpedia_2014.owl.bz2 

You can find here [1] that there are terms in Arabic 

HTH
Best,

Ghislain

[1] http://lov.okfn.org/dataset/lov/vocabs/dbpedia-owl 
Le 12 oct. 2017 à 22:48, Aman Slama <eng.slamaa@yahoo.com> a écrit :

from chapter 10 of book" a developer's guides to the semantic web" this quote: " It is legal to create RDF statements without using any ontology at all, but the resources described by these statements will not have any precisely defined meanings, they will not be able to participate in any reasoning process or take advantage of any benefit from aggregation with other resources, these RDF statements will simply remain isolated with fairly limited value. Generation RDF statements without using ontology was a major drawback in the early versions of DBpedia's extractor. "
1- now, how can I know there are an ontology exist for DBpedia versions for diferrent languages?
2- ontology and localized DBpedia- is Ontology for Arabic exist ?
3- if it is not exist, what are steps of Ontolgy creation?
4- can use and connect english ontology with arabic RDF?


Best Regards

Eng.Amany Slamaa
Teaching Assistant
Computer  and Information Science
Nile institute for technology sciences 


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Ghislain A. Atemezing, Ph.D
Twitter: @gatemezing