Table: vehicle_emissions
Columns: vehicle
epa_rated_all_electric_range
epa_rated_combined_fuel_economy
alaska_juneau
california_san_francisco
mid_atlantic_south_washington_d_c
u_s_national_average_electric_mix
southeast_atlanta
midwest_des_moines
rocky_mountains_denver

Question: What was the emission rating in Mid-Atlantic South for the vehicle that was rated 90 g/mi (56 g/km) in Alaska and 110 g/mi (68 g/km) in California?
SQL: SELECT "mid_atlantic_south_washington_d_c" FROM vehicle_emissions WHERE "alaska_juneau" = '90 g/mi (56 g/km)' AND "california_san_francisco" = '110 g/mi (68 g/km)'

Question: What was the emission rating in Mid-Atlantic South for the vehicle that was rated 300 g/mi (186 g/km) in the Midwest?
SQL: SELECT "mid_atlantic_south_washington_d_c" FROM vehicle_emissions WHERE "midwest_des_moines" = '300 g/mi (186 g/km)'

Question: What was the US national average electric mix rating for the vehicle that was rated 280 g/mi (174 g/km) in the Midwest?
SQL: SELECT "u_s_national_average_electric_mix" FROM vehicle_emissions WHERE "midwest_des_moines" = '280 g/mi (174 g/km)'

Question: How many Ford Focus electric vehicle emission test scores were recorded in California?
SQL: SELECT COUNT("california_san_francisco") FROM vehicle_emissions WHERE "vehicle" = 'Ford Focus Electric'

Question: What was the emission rating in California for the vehicle that was rated 80 g/mi (50 g/km) in Alaska and 250 g/mi (155 g/km) in the Southeast ?
SQL: SELECT "california_san_francisco" FROM vehicle_emissions WHERE "alaska_juneau" = '80 g/mi (50 g/km)' AND "southeast_atlanta" = '250 g/mi (155 g/km)'