]> G eyefloss 2005.12.25 cluster0 Someone wrote a card cluster1 and sent it to me. cluster2 I read the card. cluster3 It was a good card. someone0 someone card0 card someone0->card0 write head0 _ _ o0 / ~ / thorax0 thorax head0->thorax0 head1 _ _ o0 / ~ / head0->head1 extremity00 extremity[0] thorax0->extremity00 extremity01 extremity[1] thorax0->extremity01 thorax1 thorax head1->thorax1 head2 _ _ o0 / ~ / head1->head2 card1 card card1->head1 send extremity10 extremity[0] thorax1->extremity10 extremity11 extremity[1] thorax1->extremity11 card2 card head2->card2 read thorax2 thorax head2->thorax2 head3 _ _ o0 / ~ / head2->head3 extremity20 extremity[0] thorax2->extremity20 extremity21 extremity[1] thorax2->extremity21 thorax3 thorax head3->thorax3 extremity30 extremity[0] thorax3->extremity30 extremity31 extremity[1] thorax3->extremity31