maping json data in model class

Question

i have data in json
 

{
"Shape": ["ROUND", "HEART"],
"LAP":["GIA"]
}

i have to map in model class in c# as following

public class Clskeyvalue
    {
        public string key { get; set; }
        public string value { get; set; }
    }

how do i map please help.