Uncaught SyntaxError: Unexpected number when trying to read json data

I retrieve a json from google maps api like this

$http.get("https://maps.googleapis.com/maps/api/geocode/json?address="+data.SimpleProfileForm.postcode+"&sensor=false")
                                    .success(function(data){
                                        console.log(data);
                                        user.location = data.results.0.address_components.3.long_name;
                                    })
                                    .error(function(data){
                                        console.log("there was an error with the postcode API");
                                        console.log(data);
                                    })

but I get the error unexpected number on this line:

user.location = data.results.0.address_components.3.long_name;

if i delete the numbers i get 'cannot read property "long_name" of undefined'.

How am i to access the data in the array? Thanks in advance, Chris