INTERVISIBILITY

be bi by el en er es et in is it li ne re si ti ye

bel ben bes bet bey bin bis bit bye bys els ens ern ers ins ire its ivy lei les let lev ley lib lie lin lis lit lye neb net nib nil nit reb rei res ret rev rib rin rye sei sel sen ser set sib sin sir sit sly sri sty syn tel ten tet tie til tin tis tit try tye vet vie vis yen yes yet yin

bels belt bens bent best bets bevy beys bier bile bine bins bint birl bise bite bits bitt blet blin bren brie brin bris brit byes byre byrl byte envy erns erst evil ibis inby inly inti ires iris isle leis lens lent lest lets levy leys libs lien lier lies line lins lint liny lire liri list lite lits live lyes lyre lyse nebs nest nets nett nevi nibs nils nisi nite nits rebs rein reis rely rent rest rets revs ribs riel rile rins rise rite rive ryes sent sett silt sine sire site slit snib snit snye stet stey stir stye syli syne tels tens tent tern test tets tier ties tile tils tilt tine tins tint tiny tire tirl titi tits tivy tres tret trey tyer tyes tyin tyne tyre veil vein vent verb vert very vest vets vibe vier vies vile vine viny virl vise yens yeti yett yins