ppu
pqa
pqm
prb
prc
prd
pre
prf
prg
prh
pri
prk
prl
prm
prn
pro
prp
prq
prr
prs
prt
pru
prw
prx
pry
prz
psa
psc
psd
pse
psg
psh
psi
psl
psm
psn
pso
psp
psq
psr
pss
pst
psu
psw
psy
pta
pth
pti
ptn
pto
ISO 639-3