If the URL represents a resource that never existed return 404 Not Found

If the URL represents a resource that is an empty list return an empty list and 200 OK.

Example:

    {
      total: 0,
      items: []
    }

If the URL represents a resource that used to exist return 410 Gone.

Regarding Lego Stormtrooper's dialog:

    Alien: Computer, please tell me all planets that humans inhabit. GET /planets?inhabitedBy=humans
    
    Computer: 200 OK. { total: 1, items:[{name:'Earth'}] }
    
    Alien: Computer, please tell me about Earth. GET /planets/earth
    
    Computer: 200 OK. {name:'Earth', status: 'Mostly Harmless'}
    
    Alien: Computer, please tell me about all planets humans inhabit, outside the asteroid belt. GET /planets?inhabitedBy=humans&distanceFromSun=lots
    
    Computer: 200 OK. {total:0, items:[] }
    
    Alien: Computer, please destroy Earth. DELETE /planets/earth
    
    Computer: 204 No Content. (or 202 Accepted if it takes some time to destroy Earth)
    
    Alien: Computer, please tell me about Earth. GET /planets/earth
    
    Computer: 410 Gone
    
    Alien: Computer, please tell me all planets that humans inhabit. GET /planets?inhabitedBy=humans
    
    Computer: 200 OK 0 {total: 0, items:[] }
    
    Alien: Victory for the mighty Irken Empire!