Getting number of specific element in a response

How do you get number of an element in an API response?
For example, if your response is
{
element: value1,
element: value2,
element:value 3
}

I want to check if the occurrence of element in the response is let’s say greater than 2.

Alex,
Here are some examples on how to access the JSON data: http://mrhaki.blogspot.com/2011/11/grassroots-groovy-reading-json-with.html