New Panamera S4 posts still visible How do I delete?

Hi, The theme came with a few sample blog posts. I found them by typing new in the search bar (to see if it would show my new product line) but then it brought up these ghost posts. I cannot find them anywhere in my wp dashboard and want to get rid of them. Thank you. my site is http://www.garvinsrv.com you can see the mystery posts by typing “new” into the search bar.