oo- ooo oop oor oot op- opo opp opr opt or- oro orp orr ort ot- oto otp otr ott p-p poo pop por pot ppo ppp ppr ppt pro prp prr prt pt- pto ptp ptr ptt roo rop ror rot rpo rpp rpr rpt rrp rrr rrt rto rtp rtr rtt to- too top tor tot tpo tpp tpr tpt tro trp trr trt tto ttp ttr ttt

oooo oort ootp opo- opor oppo opto oro- oror orot orro orto oto- otoo otor otpp otro otto poop poor poot pop- popo popp popt poro porr port poto pott pppo pppp pptt pro- proo prop prot prtp prtr ptop roop roor root ropo roro rort roto rotr rott rrrr rttp toor toot top- topo topp topt toro torp torr tort toto totr tott tppp tppr tptp tptr troo trop trot trpp trtr ttop tttt

ooooo opto- optot optto ortoo ototo otpor po-po poopo poort popop poppo poro- porro porto potoo potop potor potro potto proor proot prop- propp propr propt prot- proto prtor ptpro ptprr ptprt ro-ro roto- rotor rotot rotto rprop rptor t-pop t-top topo- topor topot toppo topto torpo torro torto toto- totoo totop tprot troop trop- tropo trott ttttt

oooooo oporto optoro ottoor poopoo popopo poporo poppop poptop pottop pppppp proto- tootoo toppop tororo torpor tortor totopo totoro totrot tropo- trotro

ottrott poo-poo pop-top potoroo proport rootrot too-too tototoo tro-tro

poorpoor poroporo toottoot top-root torotoro

poto-poto proprotor

potoooooooo

toptoptoptop