-ol c-- ccc ccl cco ccr ccu cl- clc cll clo clr clu co- coc col coo cor cou crc crl cro crr cru cuc cul cuo cur cuu lcc lcl lco lcr lcu llc lll llo llr llu loc lol loo lor lou lrc lro lrr lru luc lul luo lur luu oc- occ ocl oco ocr ocu olc oll olo olu oo- ooc ool ooo oor or- orc orl oro orr oru ou- ouc oul ouo our rcc rcl rco rcr rcu rlc rll rlo rlr rlu roc rol roo ror rou rrc rrl rrr rru ruc ruo rur ruu ucc ucl uco ucr ucu ulc ull ulo ulr ulu uoc uol uoo uor ur- urc url uro urr uru uuc uur uuu