Is there a conflict here? Does this look right?

RewriteEngine on 
RewriteBase /
RewriteRule ^(.*)-(.*)_(.*)-(.*)_(.*)-(.*)_(.*)-(.*)_(.*)-(.*)_(.*)-(.*)_(.*).html(.*)$ $1.php?$2=$3&$4=$5&$6=$7&$8=$9&$10=$11&$12=$13$14
RewriteRule ^(.*)-(.*)_(.*)-(.*)_(.*)-(.*)_(.*)-(.*)_(.*)-(.*)_(.*).html(.*)$ $1.php?$2=$3&$4=$5&$6=$7&$8=$9&$10=$11$12
RewriteRule ^(.*)-(.*)_(.*)-(.*)_(.*)-(.*)_(.*)-(.*)_(.*).html(.*)$ $1.php?$2=$3&$4=$5&$6=$7&$8=$9$10
RewriteRule ^(.*)-(.*)_(.*)-(.*)_(.*)-(.*)_(.*).html(.*)$ $1.php?$2=$3&$4=$5&$6=$7$8
RewriteRule ^(.*)-(.*)_(.*)-(.*)_(.*).html(.*)$ $1.php?$2=$3&$4=$5$6
RewriteRule ^(.*)-(.*)_(.*).html(.*)$ $1.php?$2=$3$4
RewriteRule ^(.*).html$ $1.php
RewriteRule ^(sitemap.*\.(xml|txt)(\.gz)?)$ vbseo_sitemap/vbseo_getsitemap.php?sitemap=$1 [L]
RewriteRule ^$ index.php
RewriteRule (^[-_A-Za-z0-9\ ]*$) member.php?&username=$1
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