instruction:
In this task, You are given an open-domain question that can be answered based on factual information. Your task is to provide \*short\* answer (in a few words only) for the given question. The short answer can be one or more entities or it can also be boolean \*yes\* or \*no\*.
question:
the shortest distance between two points on the earth's surface is
answer:
great-circle distance


question:
names of the metropolitan municipalities in south africa
answer:
Mangaung Metropolitan Municipality


question:
how much of the world's supply of cotton came from the south
answer:

two-thirds