I blame moominmolly.

[topaz]

$ ./lcwg.rb bike vole
bike dike fike hike kike like mike pike sike sake bake cake fake hake jake lake 
make nake rake take wake woke boke coke doke joke loke moke poke roke soke toke 
yoke yore bore core fore gore kore lore more pore sore tore wore ware bare care 
dare fare gare hare mare pare rare sare tare vare yare yere bere cere dere here 
mere qere sere were wire aire dire fire hire lire mire sire tire vire vice bice 
dice fice mice nice pice rice sice tice wice wace dace face lace mace nace pace 
race rafe safe sife fife life nife rife wife wide aide bide fide hide lide mide 
nide ride side tide tade bade cade dade fade gade hade jade lade made sade vade 
wade yade yede cede lede mede rede wede wode bode code dode gode lode mode node 
rode tode tobe dobe lobe robe ribe gibe jibe kibe kipe hipe pipe ripe sipe tipe 
wipe wype gype rype type tape cape gape jape nape pape rape rope cope dope hope 
lope mope nope pope sope tope tole

There may be some opportunities for optimization.