Table: tennis_matches_21
Columns: outcome
date
surface
partner
opponents_in_the_final
score_in_the_final

Question: Which Score in the final has an Outcome of winner, and a Surface of hard (i)?
SQL: SELECT "score_in_the_final" FROM tennis_matches_21 WHERE "outcome" = 'winner' AND "surface" = 'hard (i)'

Question: Which Surface has a Partner of jim thomas, and a Date of 2007?
SQL: SELECT "surface" FROM tennis_matches_21 WHERE "partner" = 'jim thomas' AND "date" = 2007