Osterbek
Osterbek is a river of Hamburg , Germany . 
<triplet> Osterbek <subj> Hamburg <obj> located in the administrative territorial entity <subj> Germany <obj> country <triplet> Hamburg <subj> Osterbek <obj> located in or next to body of water <subj> Germany <obj> located in the administrative territorial entity <triplet> Germany <subj> Hamburg <obj> contains administrative territorial entity