IChair chair = BetterChair. createChair (player, block ) ;
        if (chair instanceof BedChair ) {
            BedChair bed = (BedChair )chair ;
            // YOUR STAFF
        }
        else if (chair instanceof BlockChair ) {
            BlockChair block = (BlockChair )chair ;
            // YOUR STAFF
        }
        else if (chair instanceof CarpetChair ) {
            CarpetChair carpet = (CarpetChair )chair ;
            // YOUR STAFF
        }
        else if (chair instanceof SlapChair ) {
            SlapChair slap = (SlapChair )chair ;
            // YOUR STAFF
        }
        else if (chair instanceof SnowChair ) {
            SnowChair snow = (SnowChair )chair ;
            // YOUR STAFF
        }
        else if (chair instanceof StairChair ) {
            StairChair stair = (StairChair )chair ;
            // YOUR STAFF
        }