The prepositional phrase would be "of the state". The word "of" is a preposition.
Examples of other prepositions: before, after, across, within, on, over, under, through, behind
A prepositional phrase has a preposition and a noun/pronoun after it.
Grendel is shown as a monster as he was exultant; highly elated about the presence of the kinsmen he wanted to devour.
Hi your stuck in jail for 5 more years because i payed now bye