---- Errata for the initial version (not for the latest version on 31 Jan.) ---- Slide 9: In the last item, 'dental' and 'alveolar' were shown in the other way round. (fixed) Slides 19,20,21, and 33: right context phones were shown with the symbol "-" , which should have been "+". (fixed) Slide 29: parentheses for the log function were not placed properly. (fixed)