Expression 2: polygon left parenthesis, left parenthesis, 0 , 0 , right parenthesis , left parenthesis, negative 1 , 0 , right parenthesis , left parenthesis, negative 1 , negative 1 , right parenthesis , left parenthesis, 0 , negative 1 , right parenthesis , right parenthesispolygon0,0,−1,0,−1,−1,0,−1