yield	SO2	ozone
1.520000000e+000	absent	absent
1.850000000e+000	absent	absent
1.390000000e+000	absent	absent
1.490000000e+000	present	absent
1.550000000e+000	present	absent
1.210000000e+000	present	absent
1.150000000e+000	absent	present
1.300000000e+000	absent	present
1.570000000e+000	absent	present
6.500000000e-001	present	present
7.600000000e-001	present	present
6.900000000e-001	present	present