How do we create JSON Schema to validate given JSON Data in Visual Studio Code using JavaScript?

For example if below data is given in .json file

{

name: "abc",

category : "a"

city : [ "gef", "xyz", "tyu"]

answergiven : "yes"

}

above data needs to be validated for what is your category? ("a","b" or "c")

which city you have been to? all that can be applied.

and at the end for "yes" or "no"

I am looking for help in how to approach this for schema generation and validation code.