1This is the [simple case].
 2
 3[simple case]: /simple
 4
 5
 6
 7This one has a [line
 8break].
 9
10This one has a [line 
11break] with a line-ending space.
12
13[line break]: /foo
14
15
16[this] [that] and the [other]
17
18[this]: /this
19[that]: /that
20[other]: /other