A.{w| w begins with an "a" and ends with a “b"} B.{w| w contains at least three a's} C.{w| w contains the substring "aba" D.{w| w has length at least 3 and its third symbol is an "a"} E. {w| w starts...

Extracted text: A.{w| w begins with an "a" and ends with a “b"} B.{w| w contains at least three a's} C.{w| w contains the substring "aba" D.{w| w has length at least 3 and its third symbol is an "a"} E. {w| w starts with "a" and has odd length, or starts with "b" and has even length} F. {w| w doesn't contain the substring "baa"}