oiti oocr oodi ooer ooff ooho ooid oooh oooo oord oore oort orce orch orci orco orde ordo ore- orec ored oreh oreo orer orfe orff orfi orhe ori- oric orid orie orif orio orit oro- oroe orof oror orot orri orro ortc orte orth orto otcd oted otee oter otfc othe otho othr otic otif otit oto- otoe otof otoh otoo otor otre otro otte otti otto rccc rcdc rcde rcet rcfc rcic rcid rcrd rctc rcti rder rdio rdoc recc recd rece rech reci recr rect redc redd rede redh redi redo redr reed reef reet refd refe reff refi refr reft rehe rehi reht reid reif reii reir reit reod reof reot rerd rere reri rero rert retd rete reth reti reto retr rett rfdi rfef rffc rfic rfid rftc rhce rhee rheo rhet rhio rhoc rhod rhoh ricc rice rich rico rict ridc ridd ride ridi rido ried rief rier riet rife riff rift riho riht riif riot rire riri rite rith riti rito ritt rocc roce roch roco rodd rode rodi rodo roed roer roet rofc rofe roff rofo rohe rohr roid roif roio roir roit rood roof rooi roor root rorc rore rori roro rort rotc rote roth roti roto rotr rott rred rrfc rrif rrrr rtcc rtce rtdt rtee rtei rtfc tccc tcdd tcfc tch- tche tchh tchi tcho tchr tctc tdff tdor tdri tech teco tecr tect tedd tede tedi teec teed teef teer teet tefc teff tefi teft tehi teho tehr teic teie teir teoh teor ter- terc tere terf teri tero terr tete teth teti teto tetr tett tfdc tfec tfot tftc thch thdr the- thec thed thee thef thei theo ther thet thi- thic thie thif thio thir thoe thof thoo thor thot thre thri thro thtr ticc tice tich tico tidc tidd tide tie- tied tiee tief tiei tieo tier tiet tiff tifo tift tiht tiit tird tire tiri tiro tirr titc tite tith titi tito titt toce toch toci toco todd tode todi todo todt toed toee toeh toei toer toet toff tofi tofo toft tohi toho toid toie toit tood toof tooh toor toot torc tord tore torf tori toro torr tort totc totd tote toth toti toto totr tott trcc tre- trec tred tree tref trei treo tret trfc trfd trfr tri- tric trie trif trio trit troc trod troe troi troo trot trtc trte trtr tteo tter ttfc ttff ttoe tttt