Prefix $($a e i$)$

Small set $($b c d$)$

Large set $($B C D$)$

Punctuation set $(xy)$

This language must follow the following rules,

$1$ Each series must contain one and only one prefix character

$2$ A series must start with a prefix character

$3$ A series must end with a punctuation character

$4$ A series can have up to but no more than $5$ character including prefix and punctuation characters

Does the following series follow all the rules of the language defined above?

aeDcy

Yes

No