problem with the URI

[ch-bas]

hello, I'm facing a problem when executing the above code, I always get a warning "does not look like a valid URI", any help please?

[Zhanelya]

Hi,

Most likely this is because the source of the ontology changed in some way since the solution was implemented. Moreover, this was more of a theoretical work targeted to explore the methods to construct and query an ontology rather than a fully functional code sample. Hope this is of any help.