ong ▁Z hu ang , ▁Y ei ▁Z hu ang , ▁D ai ▁Z hu ang , ▁and ▁Min ▁Z hu ang . ▁Min ▁Z hu ang ▁is ▁a ▁recently ▁discovered ▁variety ▁that ▁has ▁never ▁been ▁described ▁previous ▁to ▁Johnson ▁( 2 0 1 1 ). ▁( See ▁also ▁W ens han ▁Z hu ang ▁and ▁M iao ▁Aut onom ous ▁Pref ect ure # E th nic ▁groups ) ▁ ▁Py ang ▁Z hu ang ▁and ▁My ang ▁Z hu ang ▁are ▁recently ▁described ▁Central ▁Tai ▁languages ▁spoken ▁in ▁Deb ao ▁County , ▁Gu ang xi , ▁China . ▁ ▁Writing ▁systems ▁▁ ▁The ▁Z hu ang ▁languages ▁have ▁been ▁written ▁in ▁the ▁ancient ▁Z hu ang ▁script , ▁S aw nd ip , ▁for ▁over ▁a ▁thousand ▁years , ▁and ▁possibly ▁S aw go ek ▁previous ▁to ▁that . ▁S aw nd ip ▁is ▁a ▁Chinese ▁character - based ▁system ▁of ▁writing , ▁similar ▁to ▁Vietnam ese ▁ch ữ ▁n ô m ; ▁some ▁saw nd ip ▁log og rams ▁were ▁borrow ed ▁directly ▁from ▁Han ▁characters , ▁whereas ▁others ▁were ▁original ▁characters ▁created ▁from ▁the ▁components ▁of ▁Chinese ▁characters . ▁It ▁is ▁used ▁for ▁writing ▁songs ▁about ▁every ▁aspect ▁of ▁life , ▁including ▁in ▁more ▁recent ▁times ▁encourag ing ▁people ▁to ▁follow ▁official ▁family ▁planning ▁policy . ▁ ▁There ▁has ▁also ▁been ▁the ▁occas ional ▁use ▁of ▁a ▁number ▁of ▁other ▁scripts ▁including ▁p ict ograph ics ▁proto - writing , ▁such ▁as ▁in ▁the ▁example ▁at ▁right . ▁