Tagliamento
In the middle and lower sections , it first sets the boundary between the provinces of Udine and Pordenone and later between the former and the Province of Venice . 
<triplet> Udine <subj> Pordenone <obj> shares border with <subj> Province of Venice <obj> shares border with <triplet> Pordenone <subj> Udine <obj> shares border with <subj> Province of Venice <obj> shares border with <triplet> Province of Venice <subj> Udine <obj> shares border with <subj> Pordenone <obj> shares border with