                      .-----.
                 ..-------------..
                /                 \
               /  /|           |\  \
              /  / /___________\ \  \
             /  / |      |      | \  \
             \ \  |      |      |  / /
              \ \ |\____/|\____/| / /
               \ \|______|______|/ /
                \.E   ==   ==   3./
                  <== ~ === ~ ==>
                  |    ==|==    |
                  | ___ | | ___ |
                  |     | |     |
                   |    | |    |
                   |____| |____|
                    `--'   `--'

                     Figure 2
