JSFiddle - React, Tailwind, and code Playground

HTML

<p class="Number">I am a Monster, a Monster in the castle.</p>
<p class="Number">I am a Girl, a Girl in the car.</p>

JavaScript

$(document).ready(function() {
    $(".Number").each(function() {
        $(this).text($(this).text().replace(/Monster/g, "Witch")); 
    });
    $(".Number").each(function() {
        $(this).text($(this).text().replace(/Girl/g, "Boy")); 
    });
});