Table: slabinsky_ireland_f1_2007
Columns: date
tournament
surface
opponent_in_the_final
score

Question: What surface was the tournament played on against Steven Diez?
SQL: SELECT "surface" FROM slabinsky_ireland_f1_2007 WHERE "opponent_in_the_final" = 'steven diez'

Question: What date was the game played on the hard surface at the Tournament of Sweden f2?
SQL: SELECT "date" FROM slabinsky_ireland_f1_2007 WHERE "surface" = 'hard' AND "tournament" = 'sweden f2'

Question: What was the playing surface for the Tournament of Great Britain F16?
SQL: SELECT "surface" FROM slabinsky_ireland_f1_2007 WHERE "tournament" = 'great britain f16'