5 letter words:
soupy10,
4 letter words:
posy9,
puys9,
upsy9,
yups9,
yous7,
opus6,
oups6,
soup6,
3 letter words:
puy8,
spy8,
yup8,
oys6,
soy6,
yos6,
you6,
yus6,
ops5,
oup5,
pos5,
pus5,
sop5,
sup5,
upo5,
ups5,
ous3,
sou3,
2 letter words:
oy5,
yo5,
yu5,
op4,
po4,
up4,
os2,
ou2,
so2,
us2,
