-er a-a a-i aaa aad aae aai aap aar ad- ada add ade adi adp adr aea aed aee aei aep aer ai- aia aid aie aii aip air ap- apa apd ape api app apr ar- ara ard are ari arp arr daa dad dae dai dap dar dda ddd dde ddi ddp ddr de- dea ded dee dei dep der di- dia did die dii dip dir dpa dpd dpe dpi dpp dpr dra drd dre dri drp drr eaa ead eae eai eap ear ed- eda edd ede edi edp edr eea eed eee eep eer eia eid eie eii eip eir ep- epa epd epe epi epp epr era erd ere eri erp err i-d ia- iaa iad iae iai iap iar ida idd ide idi idp idr ie- iea ied iee iei iep ier iia iid iie iii iip iir ipa ipd ipe ipi ipp ipr ir- ira ird ire iri irp irr p-p paa pad pae pai pap par pda pdd pde pdi pdp pdr pea ped pee pei pep per pia pid pie pii pip pir ppa ppd ppe ppi ppp ppr pra prd pre pri prp prr ra- raa rad rae rai rap rar rda rdd rde rdi rdp rdr re- rea red ree rei rep rer ria rid rie rii rip rir rpa rpd rpe rpi rpp rpr rra rrd rri rrp rrr