for (final Variable v : joinPartnersTP) {
final Literal min = (minima == null) ? null : minima
.get(v);
if (intermediate.get(v) == null
|| min != null
&& (intermediate.get(v).minimum == null || min
.compareToNotNecessarilySPARQLSpecificationConform(intermediate
.get(v).minimum) != 0)) {
flag = false;
break;
}