S1:O1

S1:O2

S1:O3

S1:O4

S1:O5

S1:O6

S1:O7

S2:O8

S2:O9

S2:O10

S2:O11

S2:O12

S2:O13

S2:O14

S2:O15

S2:O16

S2:O17

S2:O18

S3:O1

S3:O2