I would like this illustrated through the use of Venn Diagrams

( Derek Monte subthread killer: qu'est-ce que c'est, Wed 10 Jun 2009, 0:35, archived)

Imagine one circle labelled "People who live in my mum's road"
and my mum and Mrs May in the circle. And lots of people not in the circle.
( in vino veritas, Wed 10 Jun 2009, 0:37, archived)