[midgetjones]

Makes total sense now, thanks!

Did you fudge the last example though? My mum's dad is not called June. Or am I misunderstanding?

[wtbob]

Nope, not fudged: the names are hierarchical. So (name mom) is mom in your namespace, (name mom dad) is dad in your mom's namespace, and (name mom dad June) is June in your mom's dad's namespace.