You will use http://jsonlint.com/ to help you make the following object valid JSON

{
{ name, george;
  age, 24
  friend, true
},
{name: fredrick,
 age: 84
 friend, true
}
}

Often it will indicate that the problem in on a certain line, but the real problem is actually on the following line.

Notice where the text field breaks the line. If you entered name and george on the same line, and they were on seperate lines after you clicked Validate JSON, there's a reason for that.