one with a semantic name
[one][404] with no definition
multiline one defined on 2 lines
one with a mixed case label and an upper case definition
one with the a label on the next line
[reference link][1] [1]: http://example.com [one][website] with a semantic name [website]: http://example.com [one][404] with no definition [multiline one][website] defined on 2 lines [one][Label] with a mixed case label and an upper case definition [LABEL]: http://example.com [one] [1] with the a label on the next line [`link`][website]