public static ConditionResultArray combine(ArrayList<ArrayList<ConditionResult>> arrs) {
ConditionResultArray arr = new ConditionResultArray();
for (int i = 0; i < arrs.size(); i++) {
ConditionResult r = new ConditionResult();
for (int j = 0; j < arrs.get(i).size(); j++) {
r.join(arrs.get(i).get(j));
}
arr.add(r);
}
return arr;
}
