I saw this tweet amidst the Niagara Falls of tweets that is #HIMSS14:
                  Trick question – is  a noun, verb, adjective, adverb, or interjection? – 
                  — Erik Pupo () 
                
                
I wasn’t there, where this tweet was tweeted from, so lack necessary context for interpretation.
But that’s never stopped me before!
#HIE is a determininer.
You see, among many degrees is an unfinished Ph.D. in Computational Linguistics. So, compare these two definitions of determiner.

I rest my case. (I could make a pun about case grammar, but no one would get it.)
P.S.
                  Studied his case grammar theory, very influential  "Linguist Charles Fillmore passed away last week"  
                  — Charles Webster, MD ()