Which Against has a Date of 28 january 1950?
CREATE TABLE table_46158 (
    "Opposing Team" text,
    "Against" real,
    "Date" text,
    "Venue" text,
    "Round" text
)
SELECT AVG("Against") FROM table_46158 WHERE "Date" = '28 january 1950'
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 Against has a Date of 28 january 1950? ### Input: CREATE TABLE table_46158 (
    "Opposing Team" text,
    "Against" real,
    "Date" text,
    "Venue" text,
    "Round" text
) ### Response: SELECT AVG("Against") FROM table_46158 WHERE "Date" = '28 january 1950'