Fix preprocessing in training example#20
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OdysseasKr wants to merge 1 commit intojadref:masterfrom
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Fix preprocessing in training example#20OdysseasKr wants to merge 1 commit intojadref:masterfrom OdysseasKr:lect4training
OdysseasKr wants to merge 1 commit intojadref:masterfrom
OdysseasKr:lect4training
