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

Ex 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.

Ex Output:
Sir William Thomson

Ex Input:
What did the supercapacitors improve?, Context: Last but not least the electric double-layer capacitor (now Supercapacitors) were invented. In 1957 H. Becker developed a "Low voltage electrolytic capacitor with porous carbon electrodes". He believed that the energy was stored as a charge in the carbon pores used in his capacitor as in the pores of the etched foils of electrolytic capacitors. Because the double layer mechanism was not known by him at the time, he wrote in the patent: "It is not known exactly what is taking place in the component if it is used for energy storage, but it leads to an extremely high capacity.".

Ex Output:
electrolytic capacitor

Ex Input:
Who was getting older in years?, Context: In 1970, Kerry had considered running for Congress in the Democratic primary against hawkish Democrat Philip J. Philbin of Massachusetts's 3rd congressional district, but deferred in favour of Robert Drinan, a Jesuit priest and anti-war activist, who went on to defeat Philbin. In February 1972, Kerry's wife bought a house in Worcester, with Kerry intending to run against the 4th district's ageing thirteen-term incumbent Democrat, Harold Donohue. The couple never moved in. After Republican Congressman F. Bradford Morse of the neighbouring 5th district announced his retirement and then resignation to become Under-Secretary-General for Political and General Assembly Affairs at the United Nations. The couple instead rented an apartment in Lowell, so that Kerry could run to succeed him.

Ex Output:
Harold Donohue