How many events did not have any participants?
CREATE TABLE participants (
    participant_id number,
    participant_type_code text,
    participant_details text
)

CREATE TABLE services (
    service_id number,
    service_type_code text
)

CREATE TABLE participants_in_events (
    event_id number,
    participant_id number
)

CREATE TABLE events (
    event_id number,
    service_id number,
    event_details text
)
SELECT COUNT(*) FROM events WHERE NOT event_id IN (SELECT event_id FROM participants_in_events)
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: How many events did not have any participants? ### Input: CREATE TABLE participants (
    participant_id number,
    participant_type_code text,
    participant_details text
)

CREATE TABLE services (
    service_id number,
    service_type_code text
)

CREATE TABLE participants_in_events (
    event_id number,
    participant_id number
)

CREATE TABLE events (
    event_id number,
    service_id number,
    event_details text
) ### Response: SELECT COUNT(*) FROM events WHERE NOT event_id IN (SELECT event_id FROM participants_in_events)