How to Parse data from Variable Set ServiceNow?

var mrvs;
var itemID = '98036486209173847gdbcdj879';
var ritmGR = new GlideRecord('sc_req_item');
if (ritmGR.get(itemID)) {
    mrvs = ritmGR.variables.access_list;
}
var rowCount = mrvs.getRowCount();
for (var i = 0; i < rowCount; i++) {
 var row = mrvs.getRow(i);
 var app = row.application;
 var accessLevel = row.access_level;
 gs.print(app + ' ' + accessLevel);
}
Output:
*** Script: 123 read
*** Script: 456 full
*** Script: 678 read_write