Input: who became the chairman of tata sons in 2017?

Output: Natarajan Chandrasekaran

Input: when was the wizard of oz first released?

Output: August 25, 1939

Input: where is al-lawh al- mahfudh to be found?

Output: Preserved Tablet

Input: how long does it take for a stone crab to grow a new claw?

Output:
about a year