If the opponent is Kristian Pless, who was it against?
CREATE TABLE table_23314951_4 (
    against VARCHAR,
    opponent VARCHAR
)
SELECT against FROM table_23314951_4 WHERE opponent = "Kristian Pless"
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: If the opponent is Kristian Pless, who was it against? ### Input: CREATE TABLE table_23314951_4 (
    against VARCHAR,
    opponent VARCHAR
) ### Response: SELECT against FROM table_23314951_4 WHERE opponent = "Kristian Pless"