Table: ankergren
Columns: name
country
type
moving_from
transfer_window
ends
transfer_fee
source

Question: What is the transfer window of the Leeds United source with a move from Motherwell?
SQL: SELECT "transfer_window" FROM ankergren WHERE "source" = 'leeds united' AND "moving_from" = 'motherwell'

Question: What is the source of a move from Swindon Town?
SQL: SELECT "source" FROM ankergren WHERE "moving_from" = 'swindon town'

Question: What is the name of the country that has a transfer window of winter with an end after 2009 and moving from Bolton Wanderers?
SQL: SELECT "country" FROM ankergren WHERE "transfer_window" = 'winter' AND "ends" > 2009 AND "moving_from" = 'bolton wanderers'

Question: What is the transfer fee of the move from Port Vale?
SQL: SELECT "transfer_fee" FROM ankergren WHERE "moving_from" = 'port vale'

Question: What is the type of the Leeds United source, winter transfer window and moving from Northampton town?
SQL: SELECT "type" FROM ankergren WHERE "source" = 'leeds united' AND "transfer_window" = 'winter' AND "moving_from" = 'northampton town'

Question: What is the source of the move from Port Vale?
SQL: SELECT "source" FROM ankergren WHERE "moving_from" = 'port vale'