pastw[7], wstaw[6],
spad[6], stad[6], past[6], spat[6], swad[5], wsad[5], spaw[5], swap[5], staw[5], swat[5],
pad[5], dat[5], pat[5], pst[5], sad[4], pas[4], psa[4], sap[4], spa[4], dwa[4], wad[4], wda[4], paw[4], twa[4], wat[4], swa[3], was[3],
ad[3], da[3], pa[3], at[3], ta[3], ts[3], as[2],
