Sorgue
The , which is the third-largest river course , joins with the Ouvèze at Sorgues , and flows into the Rhône at Avignon . 
<triplet> Ouvèze <subj> Rhône <obj> mouth of the watercourse <triplet> Sorgues <subj> Rhône <obj> located in or next to body of water <triplet> Rhône <subj> Ouvèze <obj> tributary