Non working route

gistfile1.aw

<?php
return array( 
 'router' => array(
    'routes' => array(
      'option' => array(
        'type' => 'Literal',
        'options' => array(
          'route' => '/option',
          'defaults' => array(
            '__NAMESPACE__' => 'AssetManagement\Controller',
            'controller' => 'Option',
            'action' => 'index'
          )
        ),
        'may_terminate' => true,
        'child_routes' => array(
          'default' => array(
            'type' => 'Segment',
            'options' => array(
              'route' => '/[:controller[/:action[/:id]]]',
              'constraints' => array(
                'controller'  => '[a-zA-Z][a-zA-Z0-9_-]*',
                'action'      => '[a-zA-Z][a-zA-Z0-9_-]*',
                'id'          => '[0-9]+'
              ),
              'defaults' => array(
                'controller' => 'Option'
              )
            )
          )
        )
      )
    ),
  ),
);