1 Of
2 course
3 you
4 can't
5 omit
6 the
7 quote
8 marks
9 on
10 just
11 any
12 key
13 since
14 a
15 hash
16 key
17 may
18 be
19 any
20 arbitrary
21 string
22 If
23 that
24 value
25 on
26 the
27 left
28 looks
29 like
30 a
31 Perl
32 operator
33 Perl
34 can
35 get
36 confused