Original: At its 1986 Ard Fheis, Sinn FÃ in delegates passed a resolution to amend the rules and constitution that would allow its members to sit in the Dublin parliament (Leinster House\/D Ã il Ã ireann).
Simplified: At its 1986 Ard Fheis, Sinn FÃ in changed its and constitution to allow its members to sit in the Dublin parliament (Leinster House\/D Ã il Ã ireann).