Chapter 2. %uc911%uc18c%uae30%uc5c5%u00a0 %uc0ac%uc5c5%uc815%ub9ac%u00a0PART 2. %uacbd%uc601%uc704%uae30 %uc9c0%uc6d0 73%ubc95%uc778%u00a0 %ud398%uc5c5%u00a0 %ud504%ub85c%uc138%uc2a4%uac1c%uc778(%uc2e0%uc6a9%ud68c%ubcf5)%u00a0 %uc7ac%ub3c4%uc804%u00a0 %ud504%ub85c%uc138%uc2a4(%u2161)