Table: wt_tier_i_series
Columns: tournament
surface
week
winners
finalists
semifinalists

Question: In what Week was Serena Williams 6–1, 6–7(7), 6–3 the Winner?
SQL: SELECT "week" FROM wt_tier_i_series WHERE "winners" = 'serena williams 6–1, 6–7(7), 6–3'

Question: Who was the Finalist on a Hard Surface with Winner Serena Williams 6–1, 6–7(7), 6–3?
SQL: SELECT "finalists" FROM wt_tier_i_series WHERE "surface" = 'hard' AND "winners" = 'serena williams 6–1, 6–7(7), 6–3'

Question: In what Week is the Rome Tournament?
SQL: SELECT "week" FROM wt_tier_i_series WHERE "tournament" = 'rome'