c-- ccc ccf cco ccr ccu cfc cff cfo cfr cfu co- coc cof coo cor cou crc crf cro crr cru cuc cuf cuo cur cuu fcc fcf fco fcr fcu ffc fff ffo ffr ffu foc fof foo for fou frc frf fro frr fru fuf fuo fur fuu oc- occ ocf oco ocr ocu of- ofc off ofo ofr ofu oo- ooc oof ooo oor or- orc orf oro orr oru ou- ouc ouf ouo our rcc rcf rco rcr rcu rfc rff rfo rfr rfu roc rof roo ror rou rrc rrf rrr rru ruc ruf ruo rur ruu ucc ucf uco ucr ucu ufc uff ufo ufr ufu uoc uoo uor ur- urc urf uro urr uru uuc uur uuu

cccc cccf cccu ccfc ccff ccoc ccrc ccrf ccuc cfcf cfco cffr cfor coco cocu cofc coff coof cor- corc corf coro corr cour crcc crcr crfc croc croo cror cucc cufc cuff cufo curf curo curr fccf ffcc ffff ffrr foco fofo foof for- foro forr four frcc frfc frou fuc- fufc fuff fufu fuor fur- furo furr occc ocro ocrr ocur ofcr off- offc offo offr offu ofor oocr ooff oooo orco orff orfu oro- orof oror orro oucc oufc ouff our- ouro ouu- rccc rcfc rffc rocc roco rofc roff rofo roof roor rorc roro roru rouf rrfc rrrr rufc ruff rufo rurc ruro ruru ucrc ufcu uocc uofo uor- urff uro- uroo urur uuoc uuuu

c-cor ccccc cfour co-co cocc- cocco cocur cofur corfo corfu coro- couco couru croco cruor cuoco curro forro forur fouro fu-fu fuco- fuoco furo- furor occur offof ofour ooooo orfor oroco oruro ouoro r-co- ro-ro rocco rocor rocou rofor ruffo rufo- ufofu urour urucu uuuuu

cocco- cococo coocoo corour coruco coruro courr- crocco cruro- curfur curour curror cururo foofoo foofur foufou fourcc fourof fourou furfur furour furrfu occour oooooo orrour rococo roucou ruocco

cooccur corrour cou-cou foo-foo fou-fou furrour off-off rococco

co-occur cocoroco corocoro cucurucu curucucu froufrou

couroucou four-four frou-frou roocoocoo

rococococo

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