Cayo Batata
Cayo Batata is an uninhabited , grass-covered island , located at , east of "Morro de Humacao" , the closest mainland feature ( which is immediately south of the mouth of Río Humacao ) , in Humacao , Puerto Rico . 
<triplet> Cayo Batata <subj> island <obj> instance of <subj> Puerto Rico <obj> located in the administrative territorial entity <triplet> Humacao <subj> Puerto Rico <obj> country <triplet> Puerto Rico <subj> Humacao <obj> contains administrative territorial entity