Conditional formatting equation difficulty

Hello,

I'd like to create a formula determining which cells to format:

Sheet1ColumnA is a series of names.

Sheet2ColumnA has more names, some which match Sheet1ColumnA.

Sheet2ColumnA also has duplicates which have differing addresses (ColumnE).

I want to highlight (fill cell w/ a color) rows in Sheet1ColumnA which match duplicate rows in Sheet2ColumnA & then apply the formula as a macro to be used monthly. I believe I can do this if I use a new Conditional Formatting rule with the proper formula encapsulating the conditions above.

I hope that makes sense.

Another way I've tried to explain it to myself is IF Sheet1ColumnA matches Sheet2ColumnA AND Sheet2ColumnA = Duplicates THEN format as so.

Thank you