I totally agree with you, you are right, the descriptions are not too helpful. OK, Here are some sample lines:

access-list V420_IN extended permit object-group Symantec_Service_Grou
+p object-group Symantec_Clients Symantec_Servers (all 3 object groups
+)
access-list V420_IN extended permit object-group Symantec_Service_Grou
+p 10.148.0.0 255.254.0.0 host 10.149.16.40  (One service group and tw
+o network addresses)
access-list V420_IN extended permit object-group Symantec_Service_Grou
+p any any (Source & Destination any)
access-list V420_IN extended permit tcp any any range 137 139 (with a 
+range of TCP ports)
access-list V420_IN extended permit tcp any any eq 445 (with a single 
+service port)
[download]

Of course there are many more, but they are all permutations of different possibilities for the three sections I mentioned above. Hope it makes more sense now