import java.util.SortedMap;
import java.util.TreeMap;
+import org.forester.protein.BinaryDomainCombination;
+import org.forester.protein.DomainId;
+import org.forester.species.Species;
import org.forester.util.DescriptiveStatistics;
public class BasicCombinableDomains implements CombinableDomains {