Ourche
The Ourche is a river in the eastern France , a left tributary of the Saône . 
<triplet> Ourche <subj> river <obj> instance of <subj> Saône <obj> mouth of the watercourse <triplet> left tributary <subj> river <obj> subclass of <triplet> Saône <subj> Ourche <obj> tributary <subj> river <obj> instance of