Table: player_transfer_8
Columns: nat
name
moving_from
type
transfer_window
ends
transfer_fee
source

Question: Where is the moving from location with a transfer window of summer and the source kerkida.net?
SQL: SELECT "moving_from" FROM player_transfer_8 WHERE "transfer_window" = 'summer' AND "source" = 'kerkida.net'

Question: Which name has the source apoelfc.com.cy and a type of transfer?
SQL: SELECT "name" FROM player_transfer_8 WHERE "source" = 'apoelfc.com.cy' AND "type" = 'transfer'