instruction:
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.
question:
From lanthanum ( 57 ) to lutetium ( 71 )
answer:
The lanthanide elements are the group of elements with atomic number increasing from 57 ( lanthanum ) to 71 ( lutetium ) .

question:
Although the French troops would have more motorised units than the Germans , they could not hope to reach their places in the battle before the enemy did .
answer:
Although the French troops would have a higher proportion of motorised units than their German adversaries , in view of the respective distances to be covered , they could not hope to reach their assigned sector advancing in battle deployment before the enemy did .

question:
Forgetting greatly limits the information that can be kept over a short period of time .
answer:
Whatever the cause or causes of forgetting over the short-term may be , there is consensus that it severely limits the amount of new information that we can retain over brief periods of time .