Explanation:
a,b-c,d: values before "-" are linebreeding in father's branch, values after in mother's branch.
Example:
2,3-5,6 ....... NAME
Dog "NAME" is once in 2nd generation in father's branch, once in 3th generation in father's branch, once in 5th generation in mothers's branch and once in 6th generation in mothers's branch
4,4-5,6 ....... NAME
Dog "NAME" is twice in 4th generation in father's branch, once in 5th generation in mothers's branch and once in 6th generation in mothers's branch
USA
