function explain_down_know(data) {
let result = data.split(" ").map(word => word.toUpperCase() + "_society").join(" ");
if (result.includes("american_table_soldier")) {
console.log("Match found for american_table_soldier");
} else {
console.log("No match found.");
}
return result;
}
const explain_down_know = (arr) => {
return arr.reduce((acc, item) => acc + "_" + item + "_society", "Start_simply_create_one_yard_many");
};