Table: us_popular_names_by
Columns: region_year
no_1
no_2
no_3
no_4
no_5
no_6
no_7
no_8
no_9

Question: Who was No. 9 when Ava was No. 4 and Addison was No. 6?
SQL: SELECT "no_9" FROM us_popular_names_by WHERE "no_4" = 'ava' AND "no_6" = 'addison'

Question: What was the No. 6 name when Emma was No. 2 and Sophia was No. 3?
SQL: SELECT "no_6" FROM us_popular_names_by WHERE "no_2" = 'emma' AND "no_3" = 'sophia'

Question: What was the No. 8 name when Chloe was No. 9 and Abigail was No. 7?
SQL: SELECT "no_8" FROM us_popular_names_by WHERE "no_9" = 'chloe' AND "no_7" = 'abigail'

Question: What was the No. 4 name when Madison was No. 5 and Abigail was No. 9?
SQL: SELECT "no_4" FROM us_popular_names_by WHERE "no_5" = 'madison' AND "no_9" = 'abigail'