Table: player_moves_2007_08
Columns: nat
name
moving_to
type
transfer_window
transfer_fee
source

Question: What was the transfer fee when winter was the transfer window?
SQL: SELECT "transfer_fee" FROM player_moves_2007_08 WHERE "transfer_window" = 'winter'

Question: What transfer fee has both winter as the transfer window, and Madureira as the moving to?
SQL: SELECT "transfer_fee" FROM player_moves_2007_08 WHERE "transfer_window" = 'winter' AND "moving_to" = 'madureira'

Question: What was the moving that has a free transfer fee, and the nationality of CYP, and winter as the transfer window?
SQL: SELECT "moving_to" FROM player_moves_2007_08 WHERE "transfer_fee" = 'free' AND "nat" = 'cyp' AND "transfer_window" = 'winter'

Question: Who is moving to Metalurh Donetsk?
SQL: SELECT "name" FROM player_moves_2007_08 WHERE "moving_to" = 'metalurh donetsk'

Question: The player moving to Villa Rio has what transfer fee?
SQL: SELECT "transfer_fee" FROM player_moves_2007_08 WHERE "moving_to" = 'villa rio'

Question: Emerson has what transfer window?
SQL: SELECT "transfer_window" FROM player_moves_2007_08 WHERE "name" = 'emerson'