5 letter words:
spifs10,
apsis7,
aspis7,
4 letter words:
spif9,
asps6,
pais6,
pass6,
pias6,
piss6,
psis6,
saps6,
sips6,
spas6,
sais4,
3 letter words:
fap8,
fas6,
ifs6,
sif6,
asp5,
pas5,
pia5,
pis5,
psi5,
sap5,
sip5,
spa5,
ais3,
ass3,
sai3,
sis3,
2 letter words:
fa5,
if5,
pa4,
pi4,
ai2,
as2,
is2,
si2,