title: Rewrite url, replace variable with keyword
body: <p>I have the following URL's:</p>
  
  <pre><code>http://www.website.com/index.php?page=boat&amp;id=1&amp;lang=nl
  </code></pre>
  
  <p>index.php is my main file. The variable "page=" is used to show the right page.</p>
  
  <p>I came up with the following rule:</p>
  
  <pre><code>RewriteRule ^([^/]*)/([^/]*)/([^/]*)/([^/]*)/([^/]*) /index.php?lang=$1&amp;keyword=$2&amp;page=$3&amp;id=$3&amp;model=$4 [L]
  </code></pre>
  
  <p>which changes the url to:</p>
  
  <pre><code>http://www.website.com/nl/yachts-for-sale/boat/1/princess-50
  </code></pre>
  
  <p>However I want the url to look like:</p>
  
  <pre><code>http://www.website.com/nl/yachts-for-sale/1/princess-50
  </code></pre>
  
  <p>As you can see without "boat" in the url. But this is an important variable because it decides which page to show.</p>
  
  <p>How can I achieve this? The "yachts-for-sale" keyword is exclusive for the "boat" page. I was thinking about a Rewritemap, but that is not allowed in a .htaccess file.</p>