cccc cccf ccfc ccff cchr ccoc ccrc ccrf ccrt cctc cctt cfcf cfco cffr cfor cfrt cftc cfth cftr chch chfc chfr choc choh choo chor chrc chrf chro chrr chrt chto chtr chtt coch coco coct cofc coff coft coho coof cooh coot cor- corc corf coro corr cort cotc coth coto cott crcc crcr crfc croc croh croo cror crot crrt crtc crtf ctcf ctfc ctfo ctor ctot ctrc fccf fcch fcot fcto ffcc ffff ffrr fftf foch foco fofo fohr foof foot for- foro forr fort foth foto fott frcc frfc froh frot ft-c ftfc hccc hcch hcfc hhhh hhof hoch hocr hoff hoho hoof hoor hoot horc horo horr hort hoth hoto hotr hott hrfc hrrc htcc htfc htoh httr occc occt ocht ocro ocrr oct- octo ofcr off- offc offh offo offr ofor ohcc ohho ohoh ohto oocr ooff ooho oooh oooo oort orch orco orff oro- orof oror orot orro ortc orth orto otfc otho othr oto- otof otoh otoo otor otro otto rccc rcfc rctc rffc rftc rhoc rhoh rocc roch roco rofc roff rofo rohr roof roor root rorc roro rort rotc roth roto rotr rott rrfc rrrr rtcc rtfc tccc tcfc tch- tchh tcho tchr tctc tfot tftc thch thof thoo thor thot thro thtr toch toco toff tofo toft toho toof tooh toor toot torc torf toro torr tort totc toth toto totr tott trcc trfc trfr troc troo trot trtc trtr ttfc ttff tttt