val needsMerge = members
                .mapIndexed { index, it -> Pair(resolved[index], it.statementSetId)}
                .filter { it.first != it.second }
                .distinct()
                .groupBy { it.first }
                .mapValues { it.value.map {it.second}.sorted() }
                .asIterable()
                .fold(emptyMap<StatementSetId,List<StatementSetId>>(), { acc, set ->
                    val transitiveEqualTo = set.value.firstOrNull { acc.contains(it) }
                    if(transitiveEqualTo != null){
                        acc.plus(Pair(transitiveEqualTo, acc[transitiveEqualTo]!!.plus(set.value).distinct()))
                    } else {
                        acc.plus(Pair(set.key, set.value))
                    }
                })