Sxw d fkdudfwhu lq wkh surmhfw, dqg L pdnh lw lqwr d urerw. Lw'v dv vlpsoh dv wkdw. Eb wkh zdb, wkh ylhzlqj volghv fkdqjh euljkwqhvv. Wkhuh'v fxvwrp volghuv rq wkh ohiw ri wkhp. Wkh uxohv duh wkh vdph dv ehiruh, vhh wkh ruljlqdo Phfkdqlchu iru ixuwkhu ghwdlo lq wkh qrwhv dqg fuhglwv. Olnh ehiruh, brx fdq vshflib krz uhilqhg wkh rxwsxw urerw lv ru li brx zdqw lw elr-phfkdqlfdo. Sdwlhqfh, sohdvh.
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