iwmap 4
"000_Global" flags  active
"The Map" flags 
// entity 0
{
"classname" "worldspawn"
// brush 0
  {
    physics_box
    {
      1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 48.000000 1.000000 48.000000
    }
  }
}