In this task, you are given a question and a context passage. You have to answer the question based on the given passage.

Input: Consider Input: How does a chestnut tree form its heartwood?, Context: The term heartwood derives solely from its position and not from any vital importance to the tree. This is evidenced by the fact that a tree can thrive with its heart completely decayed. Some species begin to form heartwood very early in life, so having only a thin layer of live sapwood, while in others the change comes slowly. Thin sapwood is characteristic of such species as chestnut, black locust, mulberry, osage-orange, and sassafras, while in maple, ash, hickory, hackberry, beech, and pine, thick sapwood is the rule. Others never form heartwood.

Output: the change comes slowly


Input: Consider Input: It became easier to move around in non-deep water thanks to what living entity?, Context: The tide-predicting machine invented by Sir William Thomson in 1872 was of great utility to navigation in shallow waters. It used a system of pulleys and wires to automatically calculate predicted tide levels for a set period at a particular location.

Output: Sir William Thomson


Input: Consider Input: What is Sheridan's first name?, Context: Louis XVI translated the Reflections "from end to end" into French. Fellow Whig MPs Richard Sheridan and Charles James Fox, disagreed with Burke and split with him. Fox thought the Reflections to be "in very bad taste" and "favouring Tory principles". Other Whigs such as the Duke of Portland and Earl Fitzwilliam privately agreed with Burke, but did not wish for a public breach with their Whig colleagues. Burke wrote on 29 November 1790: "I have received from the Duke of Portland, Lord Fitzwilliam, the Duke of Devonshire, Lord John Cavendish, Montagu (Frederick Montagu MP), and a long et cetera of the old Stamina of the Whiggs a most full approbation of the principles of that work and a kind indulgence to the execution". The Duke of Portland said in 1791 that when anyone criticised the Reflections to him, he informed them that he had recommended the book to his sons as containing the true Whig creed.


Output: Richard