▁word ▁initial ▁ph on eme ▁cluster . ▁ ▁The ▁stop ▁+ ▁spir ant ▁clusters ▁ ʔ θ , ▁ ʔ s , ▁and ▁ ʔ h ▁all ▁show ▁up ▁word ▁initially ▁and ▁word ▁med ial ly , ▁whereas ▁the ▁stop ▁+ ▁sem iv owel ▁clusters ▁dw ▁and ▁g w ▁only ▁show ▁up ▁word ▁med ial ly . ▁The ▁stop ▁+ ▁liquid ▁clusters ▁bl ▁and ▁gl ▁show ▁up ▁word ▁initially ▁and ▁word ▁med ial ly . ▁Sp ir ant ▁+ ▁stop ▁clusters ▁generally ▁appear ▁in ▁both ▁word ▁initial ▁and ▁word ▁med ial ▁position , ▁these ▁clusters ▁include ▁ θ g , ▁s <0xC7> <0xB0> , ▁s g , ▁h d , ▁and ▁h g , ▁however ▁the ▁spir ant ▁+ ▁stop ▁clusters ▁sd ▁and ▁x d ▁only ▁appear ▁word ▁med ial ly . ▁These ▁are ▁all ▁the ▁spir ant ▁+ ▁stop ▁clusters ▁account ed ▁for ▁in ▁the ▁research ▁of ▁William ▁Whit man , ▁however , ▁the ▁spir ant ▁+ ▁stop ▁cluster ▁h k ▁has ▁been ▁found ▁to ▁exist ▁word ▁med ial ly , ▁as ▁in ▁ch é th ka ▁(' dom estic ▁cow '). ▁ ▁According ▁to ▁Whit man ' s ▁research ▁there ▁are ▁two ▁spir ant ▁+ ▁nas al ▁con son ant ▁clusters ▁that ▁have ▁been ▁found , ▁which ▁are ▁h m , ▁as ▁in ▁s á hm ã ▁(' se ven ') ▁and ▁h n , ▁as ▁in ▁lá hn ũ we ▁(' cal um et '), ▁however ▁Whit man ▁does ▁account ▁that ▁h ñ ▁is ▁a ▁combination ▁which ▁appears ▁as ▁a