In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.
Q: A crane is a lifting machine that has hoists , wire ropes and sheaves on it .
A: 
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 .