Better guess: This is a : each letter replaced by the key to its left on QWERTY : m -> n? No, m’s left is n? Wait, QWERTY row: Q W E R T Y U I O P A S D F G H J K L Z X C V B N M
What if it's : m→, (nothing?) — no.
Try : m: right of M is nothing (end of row) — so maybe m stays m? t: right of T is Y. r: right of R is T. j: right of J is K. m: -> nothing. fylm The Last Bath 2020 mtrjm awn layn - fydyw lfth