Return the GPS coordinates of a house.

example.js

var PASSENGERS = [
 {
  username: "achang88",
  name: "Alex Chang",
  house: "Kirkland House"
 },
 {
  username: "afaux",
  name: "Ainsley Faux",
  house: "Adams House"
 },
 {
  username: "agore",
  name: "Al Gore",
  house: "Dunster House"
 }
];

var HOUSES = {
 "Adams House": {lat: 42.37189, lng: -71.11639},
 "Cabot House": {lat: 42.381842, lng: -71.123857},
 "Currier House": {lat: 42.381704, lng: -71.125773}
}

for(i in PASSENGERS) {
  var passenger = PASSENGERS[i];
  var house = HOUSES[passenger.house];
  
  console.log(passenger.name + " " + passenger.house);
  if(house != undefined){
    console.log("("+ house.lat +", "+house.lng+")")
  } else {
    console.log("(Unknown GPS)")
  }
}

/*
 * Output

Alex Chang Kirkland House
(Unknown GPS)
Ainsley Faux Adams House
(42.37189, -71.11639)
Al Gore Dunster House
(Unknown GPS)

 */