Let $F$ be of class $T^k$ for some $k$.
Then $E$ is an equivalence relation on $S$. Each $E$-class of $S$ contains ......
We divide them into three classes depending on the width of ......
Go to the list of words starting with: a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
y
z