How can you say Cardiff is a nice city? It's full of weevils and sex aliens and had a blooming great horned devil thing stamping on all the buildings at one point. Sounds positively awful!
Also to be honest who can tell the difference between regional dialects? To everybody outside my city I sound like a scouser. In my eyes I'm not a scouser as I don't even live in Liverpool however it does not bother me if people think I am from that region. Anyway, Welsh girls sound hot
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I could've sworn he was from Swansea... 
(from someone who lives directly between Cardiff and Swansea, without a valley accent
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i live in New Tredegar
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