1 [article Duplicates 1.5
9 [last-revision Yesterday]
10 [last-revision Tomorrow]
11 [purpose Test Duplicates]
12 [purpose Another Duplicate]
21 [copyright 2018 Joe Blow]
22 [copyright 1963 Jane Doe]
23 [license Some license]
24 [license Public Domain]
25 [biblioid uri http://www.boost.org/tools/quickbook/test/doc-info-2.quickbook]
26 [biblioid isbn 0-937383-18-X]