The book of pages|Snap|Line1|Line2|Line3|Line4|Line5|C1.X|
  The book of pages|Snap|Line1|Line2|Line3|Line4|Line5|C1.Y|
  The book of pages|Snap|Line1|Line2|Line3|Line4|Line5|C2.X|
  The book of pages|Snap|Line1|Line2|Line3|Line4|Line5|C2.Y|
  The book of pages|Snap|Line1|Line2|Line3|Line4|Line5|C3.X|
  The book of pages|Snap|Line1|Line2|Line3|Line4|Line5|C3.Y|
  .
  .
  .
  .
  .
  The song|Snap|Line1|Line2|Line3|Line4|Line5|C2.X|
  The song|Snap|Line1|Line2|Line3|Line4|Line5|C2.Y|
  Example 
    <Rating>
      <C1>
        <elt>
         <X></X>
         <X></X>
         </elt>
        <elt>
        <elt>
      </C1>
      <C2>
        <elt>
        <elt>
        <elt>
      </C2>
      <C3>
        <elt>
        <elt>
        <elt>
      </C3>
     </Rating>