[text This is a standalone line.]
[quote at 0-1 This is the first line.]
[text This is a reply to the first line.]
[quote at 2-3 This is the second line.]
[text This is a reply to the second line.]
[quote at 4-7 This is the third line.

This is the fourth line.]
[text This is a reply to the third and fourth lines.]
