Table: player_stats_50
Columns: nat
name
since
goals
ends
transfer_fee

Question: How many goals was by Rix from Eng who started before 2005 in the youth system?
SQL: SELECT COUNT("goals") FROM player_stats_50 WHERE "nat" = 'eng' AND "transfer_fee" = 'youth system' AND "since" < 2005 AND "name" = 'rix'

Question: Where is Rix from?
SQL: SELECT "nat" FROM player_stats_50 WHERE "name" = 'rix'