5 node [shape="plaintext"];
7 table4[label=<<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
8 <TR><TD SIDES="B">b</TD><TD SIDES="B" PORT="ptr4"></TD></TR>
11 table5[label=<<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
12 <TR><TD PORT="pte4">3</TD><TD PORT="ptr5"> </TD></TR>
16 table0[label=<<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
17 <TR><TD SIDES="B">a</TD><TD SIDES="B" PORT="ptr0"></TD></TR>
20 table1[label=<<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
21 <TR><TD PORT="pte0">5</TD><TD PORT="ptr1"> </TD></TR>
24 table2[label=<<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
25 <TR><TD PORT="pte1">10</TD><TD PORT="ptr2"> </TD></TR>
28 table3[label=<<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
29 <TR><TD PORT="pte2">Nil</TD></TR>
33 table6[label=<<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
34 <TR><TD SIDES="B">c</TD><TD SIDES="B" PORT="ptr6"></TD></TR>
37 table7[label=<<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
38 <TR><TD PORT="pte6">4</TD><TD PORT="ptr7"> </TD></TR>
42 edge[tailclip="false"];
43 table0:ptr0:c -> table1:pte0;
44 table1:ptr1:c -> table2:pte1;
45 table2:ptr2:c -> table3:pte2;
46 table4:ptr4:c -> table5:pte4;
47 table5:ptr5:c -> table1:pte0;
48 table6:ptr6:c -> table7:pte6;
49 table7:ptr7:c -> table1:pte0;