ในปี 1961 แชสซีคืออะไรเมื่อคะแนนต่ำกว่า 6?ไม่จำเป็นต้องใช้ตารางทั้งหมด
In 1961, what was the Chassis when the points were lower than 6?It is not neccessary to use all the tables.
 table_71423:  "Year" [ real]  "Entrant" [ text]  "Chassis" [ text]  "Engine" [ text]  "Points" [ real] 
SELECT "Chassis" FROM table_71423 WHERE "Points" < '6' AND "Year" = '1961'