5 letter words:
safes8,
seifs8,
asses5,
sises5,
4 letter words:
fess7,
safe7,
seif7,
sass4,
seas4,
seis4,
3 letter words:
efs6,
fas6,
fes6,
fie6,
ifs6,
ais3,
ass3,
ess3,
sae3,
sea3,
sei3,
sis3,
2 letter words:
ef5,
fa5,
fe5,
if5,
ae2,
ai2,
as2,
es2,
is2,
si2,