instruction:
In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.
question:
A starburst galaxy is a galaxy undergoing an exceptionally high rate of star formation , as compared to the long-term average rate of star formation in the galaxy or the star formation rate observed in most other galaxies .
answer:
A starburst galaxy is a galaxy with a very high rate of star formation .


question:
It consists of a bulb containing mercury attached to a glass tube of narrow diameter ; the volume of mercury in the tube is much less than the volume in the bulb .
answer:
The volume of mercury in the tube is much less than the volume in the bulb .


question:
A crane is a type of machine , generally equipped with a hoist rope , wire ropes or chains , and sheaves , that can be used both to lift and lower materials and to move them horizontally .
answer:

A crane is a lifting machine that has hoists , wire ropes and sheaves on it .