who is the opponent when played in trieste before 2007?
CREATE TABLE table_name_90 (
    opponent VARCHAR,
    year VARCHAR,
    town VARCHAR
)
SELECT opponent FROM table_name_90 WHERE year < 2007 AND town = "trieste"
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 is the opponent when played in trieste before 2007? ### Input: CREATE TABLE table_name_90 (
    opponent VARCHAR,
    year VARCHAR,
    town VARCHAR
) ### Response: SELECT opponent FROM table_name_90 WHERE year < 2007 AND town = "trieste"