NaPoWriMo - Poem 8 - Llantwit

Llantwit Major is one village down from St Athan, where my mum lives. While I realise people from Llantwit are known as 'Llantonians', this is just a bit of fun, okay...??

Llantwit

If Cardiff’s the Diff,
and Newport’s the Port,
then what

is this?