:.........                                          .........:
..........                                          ..........
:.........                                          .........:
-:........                                          ........:-
*-:.......                                          .......:-*
^*-:......                   body                   ......:-*^
%^*-:..... ................::*^^*::................ .....:-*^%
#%^*-:....                                          ....:-*^%#
##%^*-:...            a body is a vessel            ...:-*^%##
###%^*-:..            a body is a vessel            ..:-*^%###
####%^*-:.            a body is a vessel            .:-*^%####
###%^*-:..            a body is a vessel            ..:-*^%###
##%^*-:...            a body is a vessel            ...:-*^%##
#%^*-:....            a body is a vessel            ....:-*^%#
%^*-:.....            a body is a vessel            .....:-*^%
^*-:......            a body is a vessel            ......:-*^
*-:.......            a body is a vessel            .......:-*
-:........                                          ........:-
:.........                                          .........:
..........                                          ..........
:.........                                          .........:
-:........                                          ........:-