 
 <prompt> Wetin dey needed make one amendment pass? Based on di previous question, write one context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: Similarly, di federal constitutional initiative allow citizens to put one constitutional amendment to one national vote, if 100,000 voters sign di proposed amendment within 18 months. Parliament fit add to di proposed amendment with one counter-proposal, and then voters gats show preference on top di ballot in case both proposals dey accepted. Constitutional amendments, whether introduced by initiative or for Parliament, gats be accepted by double majority of di national popular vote and di cantonal popular votes. 