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<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js"></script>
<script>
function alertMe() {
  alert("Hello World!");
}
$(document).ready(function(){
  $("p").click(alertMe);
  $("button").click(function(){
    $("p").unbind("click", alertMe);
  });
});
</script>
</head>
<body>
<p>This is a paragraph.</p>
<p>This is another paragraph.</p>
<p>Click any p element to trigger an alert box.</p>
<button>Remove the alert box function from the click event for the p elements</button>
</body>
</html>