how do you work out how you are related to someone

[nix-j-c]

how do you work out what cousin you are to someone this has raly anoyed me because every1 i've asked has said something difrent.

[factor-fiction]

I cn tel yur raly anoyed cos its mest up yur spelin init.

Do you mean 'second cousin' because the definition of a normal cousin seems straightforward?

[dot.hawkes]

http://www.obliquity.com/family/misc/cousin.ht ml
it is all here