What is the time of frida svensson's race that had sa/b under the notes?
CREATE TABLE table_name_81 (
    time VARCHAR,
    notes VARCHAR,
    athlete VARCHAR
)
SELECT time FROM table_name_81 WHERE notes = "sa/b" AND athlete = "frida svensson"
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: What is the time of frida svensson's race that had sa/b under the notes? ### Input: CREATE TABLE table_name_81 (
    time VARCHAR,
    notes VARCHAR,
    athlete VARCHAR
) ### Response: SELECT time FROM table_name_81 WHERE notes = "sa/b" AND athlete = "frida svensson"