Table: dance_machine_episodes
Columns: air_date
rating
18_49
viewers
weekly_winner

Question: What is Weekly Winner, when Air Date is "July 4, 2008"?
SQL: SELECT "weekly_winner" FROM dance_machine_episodes WHERE "air_date" = 'july 4, 2008'

Question: What is Rating, when Air Date is "July 24, 2008*", and when Weekly Winner is "Sales Rep. Oscar Ledezma"?
SQL: SELECT "rating" FROM dance_machine_episodes WHERE "air_date" = 'july 24, 2008*' AND "weekly_winner" = 'sales rep. oscar ledezma'

Question: What is Viewers, when 18-49 is "N/A", and when Weekly Winner is "Wedding DJ Chris Dixon"?
SQL: SELECT "viewers" FROM dance_machine_episodes WHERE "18_49" = 'n/a' AND "weekly_winner" = 'wedding dj chris dixon'

Question: What is 18-49, when Weekly Winner is "Youth Counselor Justin Meece"?
SQL: SELECT "18_49" FROM dance_machine_episodes WHERE "weekly_winner" = 'youth counselor justin meece'

Question: What is Viewers, when Air Date is "July 4, 2008"?
SQL: SELECT "viewers" FROM dance_machine_episodes WHERE "air_date" = 'july 4, 2008'

Question: What is Air Date, when Rating is "N/A", and when Weekly Winner is "Wedding DJ Chris Dixon"?
SQL: SELECT "air_date" FROM dance_machine_episodes WHERE "rating" = 'n/a' AND "weekly_winner" = 'wedding dj chris dixon'