user: From the passage provided, extract the name of the person who first proposed and tested the law of conservation of energy.

assistant: Émilie du Châtelet first proposed and tested the law of conservation of energy.

user: What is the world's oldest annual marathon based on the reference text below?

assistant: The Boston Marathon is the world's oldest annual marathon, beginning on April 19th 1897.

user: Tell me whether these are famous as actors or authors: Russell Crowe, Tom Hanks, Jamie Lee Curtis, Joanne Woodward, Sara Jessica Parker, Tom Cruise, Alexander Dumas, JK Rowling, Ingrid Bergman, Grace Kelly,  Judi Dench, Kate Winslet, Jodie Foster, Doris Day, William Shakespeare, Jalal al-Din Muhammad Rumi

assistant: The famous actors from this list are, Russell Crowe, Tom Hanks, Jamie Lee Curtis, Joanne Woodward, Sara Jessica Parker, Tom Cruise, Ingrid Bergman, Grace Kelly, Judi Dench, Kate Winslet, Jodie Foster and Doris Day.  The famous authors are, Alexander Dumas, JK Rowling, William Shakespeare and Jalal Al-Din Muhammad Rumi.