Polka Marina
Polka Marina was a Merry-go-round in the amusement park Efteling in the Netherlands . 
<triplet> Polka Marina <subj> Merry-go-round <obj> instance of <subj> Efteling <obj> part of <triplet> Efteling <subj> amusement park <obj> instance of <subj> the Netherlands <obj> country of origin