Special visceral afferent fiber
The cranial nerves containing SVA fibers are the olfactory nerve ( I ) , the facial nerve ( VII ) , the glossopharyngeal nerve ( IX ) , and the vagus nerve ( X ) . 
<triplet> olfactory nerve <subj> cranial nerve <obj> instance of <triplet> facial nerve <subj> cranial nerve <obj> instance of <triplet> glossopharyngeal nerve <subj> cranial nerve <obj> instance of <subj> vagus nerve <obj> followed by <triplet> vagus nerve <subj> cranial nerve <obj> instance of