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the western two thirds of the site is owned by a proxy company and is leased to the national assembly for wales on a long lease
mae dwy ran o dair orllewinol y safle yn eiddo i ddirprwy gwmni ac fe'i prydlesir i gynulliad cenedlaethol cymru ar brydles hir
there has also been a worrying increase in the number of sexually transmitted diseases generally , which can itself be a proxy for hiv prevalence
hefyd bu cynnydd yn nifer yr heintiau a drosglwyddir drwy ryw yn gyffredinol a all fod yn brocsi ynddo'i hun i fynychter hiv