question:  What was the mission of the Whale?
context: Illustrated by Schoenherr The wind howled out of the northwest, blind with snow and barbed with ice crystals. The sun glinted on black rock glazed by ice, chasms and ridges and bridges of ice. It lit the snow slope to a frozen glare, penciled black shadow down the long furrow, and flashed at the furrow's end on a thing of metal and plastics, an artifact thrown down in the dead wilderness. Luck got me a place in the Whale . We got lined up between Earth and Mars, you'll remember, and James pushed the button marked 'Jump'. Took his finger off the button and there we were: Alpha Centauri . There was never anything wrong with the Whale till right at the end and even then I doubt if it was the ship itself that fouled things up. Matt Hennessy, from Farside Observatory, back of the Moon, just back from a proving flight cum astronomical survey in the starship Whale . Walking, talking natives on a blue sky planet with 1.1 g gravity and a twenty per cent oxygen atmosphere at fifteen p.s.i. We were able to show them our sun, in their telescopes. "One, they learned our language in four weeks. When I say they, I mean a ten-man team of them. "Two, they brew a near-beer that's a lot nearer than the canned stuff we had aboard the Whale . "Four, the ten-man language team also learned chess and table tennis. People who talk English, drink beer, like jokes and beat me at chess or table-tennis are people for my money, even if they look like tigers in trousers. Of course it's a screwy situation, playing chess with something that grows its own fur coat, has yellow eyes an inch and a half long and long white whiskers. He was called—well, we called him Charley, and he was the ethnologist, ambassador, contact man, or whatever you like to call him, who came back with us.
output:  The mission is a test flight and astronomical survey.
options:  The mission is to make peace with Alpha Centauri.  The mission is to invade Chang.  The mission is a test flight and astronomical survey.  The mission is to make contact with Chang.