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.
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Question: During the American Civil War , the river , with few convenient fords and fewer bridges , provided a barrier and defensive line .

Answer: During the American Civil War , the river , with few convenient fords and fewer bridges , provided a barrier and defensive line behind which movements of troops could be accomplished with little fear of attack from the river-side flank .


Question: The FIFA Club World Cup is a competition in the sport of Club football .

Answer: The FIFA Club World Cup is an international men 's association football competition organised by the " Fe ́ de ́ ration Internationale de Football Association " ( FIFA ) , the sport 's global governing body .


Question: Scientific theories are described as " commensurable " if one can compare them to find out which is more accurate .

Answer:
Commensurability is a concept in the philosophy of science whereby scientific theories are commensurable if scientists can discuss them using a shared nomenclature that allows direct comparison of theories to determine which theory is more valid or useful .