text: const parentFile = process.env.parent_filename;
  const fs = require('fs');
  const file = fs.readFileSync(parentFile).toString();
  const keywords = ['button', 'html', 'body', 'script'];
  
  const result = keywords.filter((keyword) => file.indexOf(keyword) !== -1);
  
  if (result.length === keywords.length) {
    console.log("Congrats!!!");
  } else {
    console.error("Your file does not have keywords");
  }
  