▁u v ular ▁f lap . ▁ ▁V ow els ▁▁ ▁The ▁v ow els ▁found ▁in ▁L akes ▁are : ▁[ i ], ▁[ a ], ▁[ u ], ▁[ ə ], ▁and ▁[ o ]. ▁The ▁[ ə ] ▁is ▁the ▁single ▁un str essed ▁variant ▁of ▁the ▁full ▁v ow els ▁in ▁Ok an agan ▁while ▁the ▁[ o ] ▁v owel ▁is ▁found ▁only ▁in ▁borrow ed ▁words . ▁Str ess ▁will ▁fall ▁only ▁on ▁the ▁full ▁v ow els ▁[ i ], ▁[ a ], ▁and ▁[ u ] ▁in ▁Ok an agan . ▁ ▁Mor ph ology ▁▁ ▁The ▁morph ology ▁of ▁Ok an agan ▁is ▁fairly ▁complex . ▁It ▁is ▁a ▁head - mark ing ▁language ▁that ▁re lies ▁mostly ▁on ▁gram mat ical ▁information ▁being ▁placed ▁directly ▁on ▁the ▁predicate ▁by ▁means ▁of ▁aff ix es ▁and ▁cl it ics . ▁The ▁combination ▁of ▁deriv ational ▁and ▁inf lection al ▁suffix es ▁and ▁prefix es ▁that ▁are ▁added ▁onto ▁the ▁stem ▁words ▁make ▁for ▁a ▁compact ▁language . ▁ ▁Person ▁markers ▁▁ ▁Ok an agan ▁demonstr ates ▁great ▁flex ibility ▁when ▁dealing ▁with ▁persons , ▁number , ▁and ▁gender . ▁The ▁language ▁enc odes ▁the ▁person ▁via ▁a ▁series ▁of ▁prefix es ▁and ▁suffix es , ▁and ▁uses ▁its ▁number ▁system ▁in ▁tan dem ▁with ▁pl ural ized ▁pr onom inals ▁to ▁communicate ▁the ▁number ▁of ▁actors ▁within ▁a ▁sentence . ▁For ▁example : ▁ ▁t ka <0xCB> <0x80> ka <0xCB> <0x80> <0xC9> <0xAC> is