4 0 ▁n oun ▁class ifiers , ▁and ▁essentially ▁no ▁" ad ject ives ". ▁ ▁N oun s ▁are ▁modified ▁either ▁by ▁n oun s , ▁by ▁class ifiers , ▁or ▁by ▁other ▁suffix es . ▁ ▁Y agua ▁uses ▁ad jective - like ▁n oun s ▁as ▁ad ject ives . ▁The ▁problem ▁then ▁occurs ▁in ▁a ▁sentence ▁like ▁the ▁red ▁hen , ▁which ▁would ▁be ▁more ▁like ▁" the ▁red ▁one , ▁the ▁hen ". ▁Both ▁" the ▁red ▁one " ▁and ▁" the ▁hen " ▁could ▁be ▁the ▁head ▁of ▁the ▁n oun ▁phrase . ▁This ▁is ▁solved ▁by ▁determ ining ▁which ▁of ▁the ▁two ▁n oun s ▁pers ists ▁in ▁the ▁following ▁disc ourse . ▁If ▁" the ▁red ▁one " ▁pers ists , ▁then ▁" red " ▁is ▁the ▁head ; ▁if ▁" the ▁hen " ▁pers ists , ▁then ▁" hen " ▁is ▁the ▁head . ▁The ▁order ▁of ▁elements ▁is ▁sensitive ▁to ▁determ ining ▁the ▁head . ▁ ▁The ▁language ▁is ▁documented ▁in ▁various ▁works ▁by ▁Paul ▁Pow l ison , ▁Est her ▁Pow l ison , ▁Dor is ▁L . ▁Pay ne , ▁and ▁Thomas ▁E . ▁Pay ne . ▁ ▁V oc ab ul ary ▁ ▁Y agua ▁has ▁a ▁qu inary ▁( base ▁ 5 ) ▁counting ▁system . ▁ ▁D ifferent ▁numbers ▁are ▁used ▁for ▁in animate ▁objects / count ing ▁and ▁animate ▁objects ▁( see ▁measure ▁word ). ▁ ▁Bibli ography ▁Pay ne , ▁Dor is ▁L . ▁▁ 1