Table: schalke_player_moves
Columns: nat
name
moving_from
type
transfer_window
ends
transfer_fee

Question: Which Type has a Nat of geo?
SQL: SELECT "type" FROM schalke_player_moves WHERE "nat" = 'geo'

Question: Which Moving from has a Nat of ned?
SQL: SELECT "moving_from" FROM schalke_player_moves WHERE "nat" = 'ned'

Question: Which Ends have a Name of zambrano?
SQL: SELECT MAX("ends") FROM schalke_player_moves WHERE "name" = 'zambrano'

Question: Which Transfer fee has a Moving from of youth system, and a Nat of mar?
SQL: SELECT "transfer_fee" FROM schalke_player_moves WHERE "moving_from" = 'youth system' AND "nat" = 'mar'

Question: Which Transfer fee has Ends larger than 2011, and a Moving from of psv?
SQL: SELECT "transfer_fee" FROM schalke_player_moves WHERE "ends" > 2011 AND "moving_from" = 'psv'