-al -ol a-a a-b a-c a-q aaa aab aac aal aao aaq aar ab- aba abb abc abl abo abq abr ac- aca acb acc acl aco acq acr al- ala alb alc all alo alq alr aoa aob aoc aol aoo aor aqa aqc aql aqo aqr ar- ara arb arc arl aro arq arr baa bab bac bal bao baq bar bba bbb bbc bbl bbo bbq bbr bca bcb bcc bcl bco bcq bcr bla blb blc bll blo blq blr boa bob boc bol boo boq bor bqc bra brb brl bro brq brr c-- caa cab cac cal cao caq car cba cbb cbc cbl cbo cbq cbr cca ccb ccc ccl cco ccr cl- cla clb clc cll clo clr co- coa cob coc col coo coq cor cqa cqb cqc cql cqo cra crb crc crl cro crq crr la- laa lab lac lal lao laq lar lba lbb lbc lbl lbo lbr lca lcb lcc lcl lco lcq lcr lla llb llc lll llo llq llr loa lob loc lol loo loq lor lqr lra lrb lrc lro lrr oaa oab oac oal oao oaq oar ob- oba obb obc obl obo obr oc- oca ocb occ ocl oco ocr ola olb olc oll olo oo- ooa oob ooc ool ooo oor oqb oqo or- ora orb orc orl oro orr qaa qac qal qar qba qbc qbq qca qcc qcl qco qoo qor qqq qra qrb qrc qrl ra- raa rab rac ral rao raq rar rba rbb rbc rbl rbo rbr rca rcb rcc rcl rco rcr rla rlc rll rlo rlr roa rob roc rol roo ror rqc rra rrb rrc rrl rrq rrr