>>>
var hawaiianBeaches = {
  'oahu'       : ['waikiki', 'kailua', 'waimanalo'],
  'big island' : ['wailea bay', 'pololu beach'],
  'kauai'      : ['hanalei', 'poipu']
};
<<<
var hawaiianBeaches = {
  'oahu': ['waikiki', 'kailua', 'waimanalo'],
  'big island': ['wailea bay', 'pololu beach'],
  'kauai': ['hanalei', 'poipu']
};