The clearest "marker" in the Q map is
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Five, two, Five?
How about relating the lines of the post to the signatures using some sort of pattern derived for 4,10,20?
Sequence or pattern for relating signatures to lines in posts? 1,3,4,7? 1,3,4,1,3,7?
Based on letters in words:
4,1,3,4,2,8?
5,3,2,8?