-er -ey a-a a-i aaa aae aai aar aas aax aay aea aee aei aer aes aex aey ai- aia aie aii air ais aix aiy ar- ara are ari arr ars arx ary as- asa ase asi asr ass asx asy ax- axa axe axi axr axs axx ay- aya aye ayi ayr ays ayx eaa eae eai ear eas eax eea eee eer ees eex eey eia eie eii eir eis eix era ere eri err ers ery es- esa ese esi esr ess esx esy ex- exa exe exi exr exs exx exy eya eye eyr eys ia- iaa iae iai iar ias ie- iea iee iei ier ies iex iey iia iie iii iir iis iix ir- ira ire iri irr irs irx iry is- isa ise isi isr iss isy ixe ixi ixy iya iye iyr iys iyy ra- raa rae rai rar ras rax ray re- rea ree rei rer res rex rey ria rie rii rir ris rix riy rra rri rrr rrs rsa rse rsi rsr rss rsx rxr rxs ry- rya rye ryr rys ryy saa sae sai sar sas sax say se- sea see sei ser ses sex sey sia sie sii sir sis six sr- sra sre sri srr srs srx sry ss- ssa sse ssi ssr sss ssx sxi sxs sy- sya sye syi syr sys syx xaa xar xas xee xer xes xex xia xie xii xis xix xrx xry xsa xsi xss xxi xxx xxy xyr xyy yaa yae yai yar yas yax yay yea yee yei yer yes yex yey yie yii yir yis yra yre yrs ysa yse ysi ysr yss ysy yxa yxe yxy yye yys yyy