I'm sending several pictures of vines growing in various places on a wood fence in my backyard in Louisville, KY. In a couple of these pictures, you can see that the same vine seems to have three-leaved specimens and also five-leaved ones. I have sprayed a herbicide (Brush-be-gone) on some of these vines (evident in a couple of pictures), but I'm concerned about the precautions that I need to take to remove them if they are indeed poison ivy. You have my permission to use these pictures and I would greatly appreciate it if you could identify these vines for me. Thank you.