Task: Program Execution
Input (English): Set1: '{1, 4, 5, 6, 7, 8, 10, 18, 19, 20}', Set2: '{1, 2, 4, 5, 9, 11, 16, 17, 19}'. Is the element '4' in the intersection of Set1 and Set2 ?
Output (English): Yes