WER we are and WER we think we are. - Piotr Szymanski; Piotr Zelasko; Mikolaj Morzy; Adrian Szymczak; Marzena Zyla-Hoppe; Joanna Banaszczak; Lukasz Augustyniak; Jan Mizgajski; Yishay Carmiel (EMNLP (Findings), 2020)