On June $1,2014,$ Rex executed a promissory note and he delivered the note to Sam West. The note stated, $"$On June $1,2019,$ I promise to pay to the order of Sam West One Thousand Dollars $($$$1,000),$ together with annual interest at the rate of ten percent $(10\%)$ per year."

$1.$ Classify the parties to the promissory note.

$2.$ Is the note negotiable or nonnegotiable

$3.$ Is the note order paper or bearer paper?

$4.$ Would the note be negotiable if it instead required Rex to pay interest at the rate of $2$ percent over the prime rate charged by Citicorp Bank from time to time?