How to read and parse a large OWL file?

[锐光刘]

Thanks a lot for your help.Our team want to read OWL file.and then
reasoning on it partly.I haven't used  TDB before.But this can't be
download now ,always displays 404 error.I will try this ways firstly when
it is availabe.If there are other problems, I will ask you again. Thanks
sincerely !