SPRINGBOKS

bi bo go in is ki no oi on op or os pi si so

big bin bio bis bog bop bos bro gib gin gip gob gor gos ink ins ion irk kin kip kir kis kob koi kop kor kos nib nip nob nog nor nos obi ons ops orb ors pig pin pis poi pro psi rib rig rin rip rob sib sin sip sir sis ski sob son sop sos sri

bigs bins biog bios birk biro bisk bogs bong bonk bops bork born bosk boss brig brin brio bris bros gibs gink gins gips girn giro gobs gorp grin grip grok ikon inks inro ions irks iron king kino kins kips kirn kirs kiss knob knop kobs kois kops kors koss kris nibs nips nobs nogs noir nori obis oink orbs pigs ping pink pins pion pirn piso piss pois pong pons pork porn prig prog pros psis ribs rigs ring rink rins rips risk robs sibs sign sing sink sins sips sirs skin skip skis snib snip snob snog sobs song sons sops sorb sori sorn spik spin sris