With Er $=(0,1\}$ and E$2=\{$a$,$b$,$ c$,$ d$,$e$,$f$.$g$,$h$,$i$,$j$,$k$,$l$,$m$,$n$,$o$,$p$,$q$,$r$,$s$,$t$,$u$,$v$,$w$,2,$y$,2\}$andI$=\{0,1,2,$ y$,2\}($a$)$ Give an example of the shortest string over Ep that is meaningful to you in some way, andexplain why it's meaningful to you.$($b$)$ List all examples of strings of length $1$ over Xy and explain why your list is exhaustive.$($c$)$ Calculate the number of distinct strings of length $3$ over I and explain your calculation.$($d$)$ With the ordering $2<$ y $<2<0<1,$ list the first ten strings over I in string order.