What is the length of retirement for president Sharma, Shankar Shankar Dayal Sharma?
CREATE TABLE table_65806 (
    "President" text,
    "Date of birth" text,
    "Date of inauguration" text,
    "Age at inauguration" text,
    "End of term" text,
    "Length of retirement" text,
    "Date of death" text,
    "Lifespan" text
)
SELECT "Length of retirement" FROM table_65806 WHERE "President" = 'sharma, shankar shankar dayal sharma'
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 is the length of retirement for president Sharma, Shankar Shankar Dayal Sharma? ### Input: CREATE TABLE table_65806 (
    "President" text,
    "Date of birth" text,
    "Date of inauguration" text,
    "Age at inauguration" text,
    "End of term" text,
    "Length of retirement" text,
    "Date of death" text,
    "Lifespan" text
) ### Response: SELECT "Length of retirement" FROM table_65806 WHERE "President" = 'sharma, shankar shankar dayal sharma'