The Second segment of URI determines which method is being called. If you want to override it, you can use _remap() method. The _remap method always get called even if URI is different. It
overrides the URI. For Example:
public function _remap($methodName)
{
if ($methodName === 'a_method')
{
$this->method();
}
else
{
$this->defaultMethod();
}
}