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: France has a multi-party system , which means that several political parties must form coalitions in order to form a government .
A: 
France has a multi-party political system : one in which the number of competing political parties is sufficiently large as to make it almost inevitable that in order to participate in the exercise of power any single party must be prepared to negotiate with one or more others with a view to forming electoral alliances and / or coalition agreements .