I have 3 url's with different keywords of same domain.
Exp: dogtrainingcourses.com (Dog Training Courses)
dogtrainingcourses.com/Dog-training-online (Dog Training Online)
dogtrainingcourses.com/dog-training-tips (Dog Training Tips)
Now the question is this if i submit these 3 on a site (blog commenting) on PR4. Is it beneficial for three keywords or only one will got the power in the google's eye?