Who were the semifinalists in the week of 13 November when the runner-up was Pat Du Pr ?
CREATE TABLE table_31104 (
    "Week of" text,
    "Tournament" text,
    "Champion" text,
    "Runner-up" text,
    "Semifinalists" text,
    "Quarterfinalists" text
)
SELECT "Semifinalists" FROM table_31104 WHERE "Week of" = '13 November' AND "Runner-up" = 'Pat Du Pré'
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: Who were the semifinalists in the week of 13 November when the runner-up was Pat Du Pr ? ### Input: CREATE TABLE table_31104 (
    "Week of" text,
    "Tournament" text,
    "Champion" text,
    "Runner-up" text,
    "Semifinalists" text,
    "Quarterfinalists" text
) ### Response: SELECT "Semifinalists" FROM table_31104 WHERE "Week of" = '13 November' AND "Runner-up" = 'Pat Du Pré'