Original sentence: The election also saw the bilingual ProBruxsel party challenge the legal obligation to present only Dutch- or French-speaking lists
Edited sentence: The election also saw the ProBruxsel party, which claims to be "the first and only bilingual political party in Belgium", challenge the legal obligation to present only Dutch- or French-speaking lists.The party seeks to promote the cosmopolitan nature of Brussels and prevent what it sees as the black-white linguistic divide being brought to the city