Expression 1: polygon left parenthesis, left parenthesis, negative 4 , negative 5 , right parenthesis , left parenthesis, 4 , negative 5 , right parenthesis , left parenthesis, 1 , negative 4 , right parenthesis , left parenthesis, 1 , negative 1 , right parenthesis , left parenthesis, 4 , negative 1 , right parenthesis , left parenthesis, 5 , negative 4 , right parenthesis , left parenthesis, 5 , 4 , right parenthesis , left parenthesis, 4 , 1 , right parenthesis , left parenthesis, 1 , 1 , right parenthesis , left parenthesis, 1 , 4 , right parenthesis , left parenthesis, 4 , 5 , right parenthesis , left parenthesis, negative 4 , 5 , right parenthesis , left parenthesis, negative 1 , 4 , right parenthesis , left parenthesis, negative 1 , 1 , right parenthesis , left parenthesis, negative 4 , 1 , right parenthesis , left parenthesis, negative 5 , 4 , right parenthesis , left parenthesis, negative 5 , negative 4 , right parenthesis , left parenthesis, negative 4 , negative 1 , right parenthesis , left parenthesis, negative 1 , negative 1 , right parenthesis , left parenthesis, negative 1 , negative 4 , right parenthesis , right parenthesispolygon−4,−5,4,−5,1,−4,1,−1,4,−1,5,−4,5,4,4,1,1,1,1,4,4,5,−4,5,−1,4,−1,1,−4,1,−5,4,−5,−4,−4,−1,−1,−1,−1,−4