um using the old fashioned blackboard and chalk
um using the old fashioned blackboard and chalk .
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u m WORD_BOUNDARY u s i n g WORD_BOUNDARY t h e WORD_BOUNDARY o l d WORD_BOUNDARY f a s h i o n e d WORD_BOUNDARY b l a c k b o a r d WORD_BOUNDARY a n d WORD_BOUNDARY c h a l k WORD_BOUNDARY