Sinn Fein say rights are non negotiable - so just what are the issues they will not drop for a return to Stormont? @chrisadonnelly, @oharamal, @SJAMcBride and @AllisonMorris1 discuss

Citizen's rights are non-negotiable - so says the Sinn Fein leader in Northern Ireland Michelle O'Neill. Her party leader Mary Lou McDonald told the Press Association's David Young earlier in the week that the party's stance in February remained its "bottom line" going into any fresh negotiations. But that agreement did not include equal marriage rights, or abortion rights. So are these new red lines for Sinn Fein? Or are marriage rights up for discussion again? Stephen got the views of Green Party's Malachai O'Hara, commentator Chris Donnelly, Newsletter political editor Sam McBride and Allison Morris from the Irish News.