Herval
Herval is a Brazilian municipality in the southern part of the state of Rio Grande do Sul . 
<triplet> Herval <subj> Rio Grande do Sul <obj> located in the administrative territorial entity <triplet> Brazil <subj> Rio Grande do Sul <obj> contains administrative territorial entity <triplet> Rio Grande do Sul <subj> Herval <obj> contains administrative territorial entity <subj> Brazil <obj> country