(c)      copyright
(r)      registered
(tm)     trademark
(sm)     service mark
...      ellipsis
. . .    ellipsis
---      em-dash
--       en-dash
1/4      one-quarter
1/4th    one-quarter
3/4      three-quarters
3/4th    three-quarters
3/4ths   three-quarters
1/2      one-half
"        left-double
"        right-double
'        left-single
'        right-single
