selecting by element:    /a
          by attribute:  /a

selecting by element:    /a/b
          by attribute:  /a/b

selecting by element:    /a/b/c
          by attribute:  /a/b/c

selecting by element:    /a/b/c/d
          by attribute:  /a/b/c/d

selecting by element:    /a/b/c/d/e
          by attribute:  /a/b/c/d/e

selecting by element:    /a/b/c/d/e/f
          by attribute:  /a/b/c/d/e/f

selecting by element:    /a/b/c/d/e/f/g
          by attribute:  /a/b/c/d/e/f/g

selecting by element:    /a/b/c/d/e/f/g/h
          by attribute:  /a/b/c/d/e/f/g/h