[{
    "guide": null,
    "residence": [{
        "name_r": "jack"
    }, {
        "name_r": "jim"
    }, {
        "name_r": "sara"
    }],
    "residence_u": [{
        "units": ["hello", "how", "what"],
        "extra": ["11", "22", "33"],
        "price": ["1,111,111", "2,222,222", "3,333,333"]
    }, {
        "units": ["fine"],
        "extra": ["44"],
        "price": ["4,444,444"]
    }, {
        "units": ["thanks", "good"],
        "extra": ["55", "66"],
        "price": ["5,555,555", "6,666,666"]
    }]
}]
	
success: function (data) {
    $.each(data[0].residence, function (index, value) {
        $('ol#residence_name').append('<li><a href="" class="tool_tip" title="ok">' + value.name_r + '</a><div class="tooltip"></div></li>');
        var info = data[0].residence_u[index];
        $.each(info.units, function (index, value) {
            $('ol#residence_name li .tooltip').append(value + ' & ' + info.extra[index] + ' & ' + info.price[index] + '<br>');
        })
    });
	
var $li = $('<li><a href="" class="tool_tip" title="ok">' + value.name_r + '</a></li>');
var $tooltip = $('<div class="tooltip"></div>').appendTo($li);

var info = data[0].residence_u[index];

$.each(info.units, function (index, value) {
    $tooltip.append(value + ' & ' + info.extra[index] + ' & ' + info.price[index] + '<br>');
});

$li.appendTo('#residence_name');
	
// Declare the variables we're going to use
var i, j; // Iterating variables
var name, unitsArray, extraArray, priceArray; // Outer loop
var unit, extra, price; // Inner loop

// Loop through the people
for( i in data[0].residence ) {

  // Assign the outer-loop variables
  name = data[0].residence[i].name_r;
  unitsArray = data[0].residence_u[i].units;
  extraArray = data[0].residence_u[i].extra;
  priceArray = data[0].residence_u[i].price;

  // Do something here with the name

  // For each person, loop through the things they said
  for( j in unitsArray ) {

    // Assign the inner-loop variables
    unit  = unitsArray[j];
    extra = extraArray[j];
    price = priceArray[j];

    // Do something here with the 3 inner-loop variables

  }

}