Which category was Michael Stewart a nominee in?
CREATE TABLE table_10587 (
    "Year" real,
    "Award" text,
    "Category" text,
    "Nominee" text,
    "Result" text
)
SELECT "Category" FROM table_10587 WHERE "Nominee" = 'michael stewart'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: Which category was Michael Stewart a nominee in? ### Input: CREATE TABLE table_10587 (
    "Year" real,
    "Award" text,
    "Category" text,
    "Nominee" text,
    "Result" text
) ### Response: SELECT "Category" FROM table_10587 WHERE "Nominee" = 'michael stewart'