Shirvan
Today , the region is an industrially and agriculturally developed part of the Azerbaijan Republic that stretches between the western shores of the Caspian Sea and the Kura River , centered on the Shirvan Plain . 
<triplet> Caspian Sea <subj> Azerbaijan Republic <obj> basin country <subj> Kura River <obj> tributary <triplet> Kura River <subj> Azerbaijan Republic <obj> basin country <subj> Caspian Sea <obj> mouth of the watercourse <triplet> Shirvan <subj> Azerbaijan Republic <obj> country