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.

Example Input: The Multi Crew Coordination ( MCC ) is a training in addition to the commercial pilot licence required to fly with a crew , in a more than one pilot aircraft .
Example Output: The Multi Crew Coordination or Multi Crew Co-operation ( MCC ) is an allowance , an additional training at the commercial pilot licence required in order to fly within a crew , that means in a multi-pilot aircraft with the aircrew consisting of at least two members .

Example Input: Portland stone is hard enough to resist weathering but soft enough to be worked ( cut and carved ) by stonemasons .
Example Output: The degree of cementation in Portland stone is such that the stone is sufficiently well cemented to allow it to resist weathering , but not so well cemented that it ca n't be readily worked ( cut and carved ) by masons .

Example Input: Unlike rodents , which have gnawing incisors that grow throughout life , the teeth of shrews wear down throughout life , and they lose their milk teeth before birth .
Example Output:
Whereas rodents have gnawing incisors that grow throughout life , the teeth of shrews wear down throughout life , a problem made more extreme because they lose their milk teeth before birth , so have only one set of teeth throughout their lifetimes .