a-a a-c a-q aaa aac aaq aar aau aax ac- aca acc acq acr acu acx aqa aqc aqr ar- ara arc arq arr aru arx au- aua auc aur aux ax- axa axr axx c-- caa cac caq car cau cax cca ccc ccr ccu ccx cqa cqc cra crc crq crr cru crx cua cuc cuq cur cuu cxc cxr cxx qaa qac qar qau qax qca qcc qqq qqu qra qrc qru qu- qua qur qux ra- raa rac raq rar rau rax rca rcc rcr rcu rcx rqc rra rrc rrq rrr rru rua ruc rur ruu rux rxr ua- uaa uac uaq uar uau uca ucc ucr ucu ur- ura urc urr uru urx uua uuc uur uuu uxc uxr uxu xaa xac xar xau xcr xcx xrc xrx xxx