Table: mack_mabel_awards
Columns: year
award
category
nominee
result

Question: Who was the nominee having a Tony award?
SQL: SELECT "nominee" FROM mack_mabel_awards WHERE "award" = 'tony award'

Question: What was the year Bernadette Peters was a nominee for the Tony award?
SQL: SELECT SUM("year") FROM mack_mabel_awards WHERE "award" = 'tony award' AND "nominee" = 'bernadette peters'

Question: Which category was Michael Stewart a nominee in?
SQL: SELECT "category" FROM mack_mabel_awards WHERE "nominee" = 'michael stewart'