Tri-Valley
It encompasses the cities of Dublin , Livermore , Pleasanton and San Ramon , the town of Danville and the CDPs of Alamo , Blackhawk and Diablo . 
<triplet> Alamo <subj> CDPs <obj> instance of <triplet> Blackhawk <subj> CDPs <obj> instance of <triplet> Diablo <subj> CDPs <obj> instance of