Tampico metropolitan area
The Tampico metropolitan area is the third most populous metropolitan area in the state of Tamaulipas , in the country of Mexico . 
<triplet> Tampico metropolitan area <subj> metropolitan area <obj> instance of <subj> Mexico <obj> country <triplet> Tamaulipas <subj> Mexico <obj> country <triplet> Mexico <subj> Tamaulipas <obj> contains administrative territorial entity