Simplify the following text for a Grade 9 native English-speaking person.
Original: The Leader of the Opposition ( sometimes known as the Leader of the Opposition in the House of Commons ) in the United Kingdom is the politician who leads Her Majesty 's Loyal Opposition . The Leader of the Opposition is normally the leader of the second largest party in the House of Commons .
Simplified: From 1922 the Leader of the Opposition in the House of Commons was considered to be the overall Leader of the Opposition .