http://www.discusonline.com/UDISC/default.htm

(these correlations are approximate)

--- S/D
-0- S/C
-+- S/I
--0 D/C
-00 D/S
-+0 D/I
--+ D/C
-0+ D/C
-++ D/I
0-- C/D
00- C/S
0+- C/I
0-0 C/D
000 C/D
0+0 C/I
0-+ D/C
00+ D/C
0++ D/I
+-- S/C
+0- S/I
++- S/I
+-0 I/C
+00 I/S
++0 I/D
+-+ I/C
+0+ I/D
+++ I/D