RES 1b:x-dara-PEN-1:4 2b:a-dara-PEN-1:4 3b:a-dara-PEN-1:4 4b:a-dara-PEN-1:4 LIN 1:1o(5+1)2d 2:2o(3+1)3d 3:2o(5+1)4d