how can I find people properties in this code with prompt in java script

let GGG = { name : "Bill", surname : "Gates", age : 72,

} console.log(GGG)

let BBB = { name : "Donad", surname : "Trump", age : 75,

} console.log(BBB)

let AAA = { name : "Joe" surname : "Biden" age : 86 }

console.log(AAA)