I have two types

BuggyType
CREATE TYPE BuggyType AS OBJECT(
chassis_no INT(6),
make VARCHAR2(12)) NOT FINAL;
/
and BuggyBookingType

CREATE TYPE BuggyBookingType UNDER BuggyType(
booking_date DATE,
mem_id INT(6));
/
and I have a table

CREATE TABLE BuggyBookings OF BuggyBookingType;

how can I insert into this table?