Task: Program Execution
Input (English): Set1: '{4, 6, 7, 8, 9, 10, 11, 12, 17, 18}', Set2: '{1, 2, 3, 6, 9, 10, 12, 14, 20}'. Is the element '9' in the intersection of Set1 and Set2 ?
Output (English): Yes