Frösjön
Frösjön is a lake in Södermanland , Sweden , which straddles the boundary between Gnesta Municipality and Stockholm Municipality . 
<triplet> Frösjön <subj> Sweden <obj> basin country <triplet> Södermanland <subj> Sweden <obj> country <triplet> Sweden <subj> Södermanland <obj> has part <triplet> Gnesta Municipality <subj> Södermanland <obj> part of <subj> Sweden <obj> country <triplet> Stockholm Municipality <subj> Södermanland <obj> part of <subj> Sweden <obj> country