What are the dates for the documents with both 'GV' type and 'SF' type expenses?
CREATE TABLE Documents (
    document_date VARCHAR,
    document_id VARCHAR
)

CREATE TABLE Documents_with_Expenses (
    document_id VARCHAR,
    budget_type_code VARCHAR
)
SELECT T1.document_date FROM Documents AS T1 JOIN Documents_with_Expenses AS T2 ON T1.document_id = T2.document_id WHERE T2.budget_type_code = 'GV' INTERSECT SELECT T1.document_date FROM Documents AS T1 JOIN Documents_with_Expenses AS T2 ON T1.document_id = T2.document_id WHERE T2.budget_type_code = 'SF'
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 are the dates for the documents with both 'GV' type and 'SF' type expenses? ### Input: CREATE TABLE Documents (
    document_date VARCHAR,
    document_id VARCHAR
)

CREATE TABLE Documents_with_Expenses (
    document_id VARCHAR,
    budget_type_code VARCHAR
) ### Response: SELECT T1.document_date FROM Documents AS T1 JOIN Documents_with_Expenses AS T2 ON T1.document_id = T2.document_id WHERE T2.budget_type_code = 'GV' INTERSECT SELECT T1.document_date FROM Documents AS T1 JOIN Documents_with_Expenses AS T2 ON T1.document_id = T2.document_id WHERE T2.budget_type_code = 'SF'