ddd ddf ddo ddp ddr ddt dfd dff dfo dfp dfr dft dod dof doo dop dor dot dpd dpf dpo dpp dpr dpt drd dro drp drr drt dtd dtf dto dtp dtr dtt fdd fdf fdo fdp fdr fdt ffd fff ffo ffp ffr fft fof foo fop for fot fpd fpo fpp fpr fpt frd frf fro frp frr frt ftd ftf fto ftp ftr ftt odd odf odo odp odr odt of- ofd off ofo ofp ofr oft oo- ood oof ooo oop oor oot op- opd opf opo opp opr opt or- ord orf oro orp orr ort ot- otd otf oto otp otr ott p-p pdd pdf pdo pdp pdr pdt pfd pff pfo pfp pfr pft pod pof poo pop por pot ppd ppf ppo ppp ppr ppt prd prf pro prp prr prt pt- ptd ptf pto ptp ptr ptt rdd rdf rdo rdp rdr rdt rfd rff rfo rfp rfr rft rod rof roo rop ror rot rpd rpf rpo rpp rpr rpt rrd rrf rrp rrr rrt rtd rtf rto rtp rtr rtt tdd tdf tdo tdp tdr tdt tfd tff tfo tfp tfr tft to- tod tof too top tor tot tpd tpf tpo tpp tpr tpt trd trf tro trp trr trt ttd ttf tto ttp ttr ttt

dddd ddot ddpo dfdt dfrf dftr dod- dodd dodo doff dood doof doop door doot dopo dopp dopr dopt dord dorf doro dorp dorr dort dotd doto dott dpdt drod drof drop drot dtdp dtor dtot dttp fdot ffff ffrr fftf fofo food foof foot fopp for- ford foro forr fort foto fotp fott fpdt fprf frop frot frpd ftop oddd odoo odop odor odot odrp ofdr off- offo offr ofor oftp ooff oooo oord oort ootp opo- opor oppo opto ordo orff oro- orof oror orot orro orto otfp oto- otof otoo otor otpp otro otto pdpr pfff pffr pfft pod- podd podo poff pood poof poop poor poot pop- popo popp popt poro porr port potd potf poto pott ppod pppd pppo pppp pprf pptt pro- prod prof proo prop prot prpd prrd prtp prtr ptop ptpd ptrd ptrf rodd rodo roff rofo rood roof roop roor root ropo roro rort roto rotr rott rpdp rpof rptd rrrr rtdt rttp tdff tdor tfot tfpt tftp todd todo todt toff tofo toft tood toof toor toot top- topd topf topo topp topt tord torf toro torp torr tort totd toto totr tott tpdf tppd tppp tppr tptp tptr trfd trfr trod troo trop trot trpp trtr ttff ttop tttt

d-dot d-rod ddddd do-do dodoo dodro dofor doodo dopdf dordt dorff dorot dotoo dotto droff drood droof droop drop- dropo dropt drott fodor foord ford- fordo fordp forro forto fprot frodo frood froop froot ftord ftrtt odttf offof offto ofoto ofpop ooooo oopod opodo opto- optot optto ordro orfor orodo ortoo ototo otpor pforp po-po podo- podor poopo poort popop poppo poro- porro porto potof potoo potop potor potro potto prodd proff proft proof proor proot prop- propp propr propt prot- proto prtor ptprd ptprf ptpro ptprr ptprt ro-ro rodor rofor rooft roto- rotor rotot rotto rprop rptor t-pop t-top to-do todor toffo tofop tofor toord topo- topof topor topot toppo topto torpo torro torto toto- totoo totop tprot troff troft trood troop trop- tropo trott ttttt

dododo doorto dorood doropo dororo dotdot dotodo dropff dropof dropto f-prot foofoo forrot ftroop ofdoor offord ofpoor oftfor oofotr oooooo oordoo opdorp oporto optfor optoro orford otford ottoor podofo poopoo popfor popoff popopo poporo poppop poptop portof pottop pppppp profor proto- rootof rorodt to-fro tootoo topoff toppop torodo tororo torpor tortor totopo totoro totrot tropo- troppo trotro

dod-rot dodford doo-doo dropoff droptop foo-foo footrot forroot fortord off-off ofproof ottrott poo-poo pop-off pop-top potoroo prodrop profoto proport rooftop rootfor rootrot too-too top-off topfort tordoff tototoo tro-tro trotoff

dottodot drop-off footdrop foptroop off-odor poorpoor poroporo protopod roof-top rotproof toottoot top-root torotoro

ddddddddd doot-doot dotdotdot poto-poto proprotor rodofodor rot-proof

doortodoor

footforfoot potoooooooo proof-proof

door-to-door toptoptoptop

doodoodoodoodoo