bbbb bbch bbci bbpr bbrc bcbc bcbp bccc bcci bcor bcpp bhcc bhir bhoi bhor bibb bibi bibo bicc bich bici bico bihi bio- bioc bioi bipp birb biri biro birr bobb bobi bobo boch boco boho bohr boi- boii boob booc booh boop boor bopp bor- borh bori boro borr bpcp bphc bprc brcb bric brih brio brob broc broh broo bror brrr c-bo cbbc cbcc cbcp cbcr cbir cbpc cbpp cbrh ccbc cccb cccc ccci cccp cchp cchr ccic ccii ccip ccir ccob ccoc ccpp ccpr ccrc ccri ccrp chbp chch chci chcp chib chic chih chip chir choc choh choi choo chop chor chpp chpr chrb chrc chro chrp chrr cibc cibi cibo cicc cich cici cico cicr cihr ciii ciob cior cipo cipp cirb circ cirh ciri ciro cirr cobb cobh cobi cobo coch coco cocp coho coip coir coob cooh coop coph copi copo copp copr cor- corb corc cori coro corp corr cpbc cpic cpio cpri crbc crcc crcr crib cric crip crob croc croh croo crop cror crpc h-ii hbic hbio hboc hcbc hccb hccc hcch hchi hcpc hcrp hhhh hhip hhpc hi-c hibi hicc hich hico hicp hihc hihi hiho hiob hioc hipc hipo hipp hiri hiro hobo hoch hocr hoho hoip hoir hoop hoor hopi hopo hopp horc hori horo horr hpcc hrib hrip hrob hrpc hrpp hrrc ibrc ibri ibro icbc icbp iccb iccc icci icco iccp iccr ichc ichi icho ichr icoc icor icpc icpo icrc icrr ihcc ihob ihop ihrc iiii iiio iioi iioo iiop iirc iobi ioci iocp ioii ioio iooi iooo iori ipcc iphc iphr ipoh ipop ippc ippo ippr ipri irbp ircc iri- iric irio irip irob iroc iroh irop irpc irrc irri obbo oboi obor obrh obri obro ocbc occc occi ochi ocpp ocro ocrr ohcc ohhi ohho ohio ohob ohoh oici oiii oipc oobi oocr ooho oooh oooo ophi opic opii opio opo- opor oppi oppo orbb orbi orbo orch orci orco ori- oric orio oro- oror orpc orph orpi orri orro pbcc pboc pcbc pccc pchp pcip pcpb pcpp pcrc phcc phi- phip phob phoh phoo phrr pibb pibi picc pich pici pico picr piip piob pipi pipo pipp pirc piri piro pirr pobo poch poco poio pooh poop poor pop- popc popi popo popp porb porc pori poro porr ppcc ppci pphi ppib ppic ppih pppo pppp pprc prbc prcc prcp pri- prii pro- prob proc proo prop prri rbbb rbbr rboh rcbc rcbo rccb rccc rchb rcic rcpi rcpo rhcp rhib rhio rhob rhoc rhoh rib- ribo ricc rich rico riho ripi ripp ripr riri rob- robb robi robo rocc roch roco rohr roio roir roob rooi roop roor ropo rorc rori roro rpho rpii rpob rrrr