Temelji na trees, nove besede, ki nastane z dodajanjem eno črko na začetku ali na koncu:
a - eerst b - aretes c - easter d - eaters f - reseat g - seater h - teaser i - berets j - certes k - erects l - resect m - secret n - terces o - desert p - deters r - rested s - fester t - freest u - egrets v - greets w - ethers x - theres y - threes z - resite
