 
 <prompt> How constitution dey work? Based on di last question, write something wey get di answer. E fit be 1 - 20 sentences. Context: <response>: Similarly, di federal constitutional initiative allow citizens to put constitutional amendment to national vote, if 100,000 voters sign di proposed amendment within 18 months. Parliament fit add to di proposed amendment with counter-proposal, and then voters gats show preference on 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. 