Gatun Dam
The Gatun Dam is a large earthen dam across the Chagres River in Panama , near the town of Gatun . 
<triplet> Gatun Dam <subj> earthen dam <obj> instance of <subj> Panama <obj> country <triplet> Chagres River <subj> Panama <obj> country <triplet> Gatun <subj> Panama <obj> country