private void makeUnique()
{
Patterns = Patterns.Distinct().ToList();
ContextsAfter = ContextsAfter.Distinct().ToList();;
ContextsBefore = ContextsBefore.Distinct().ToList();;
InvalidsAfter = InvalidsAfter.Distinct().ToList();;
InvalidsBefore = InvalidsBefore.Distinct().ToList();
Patterns.Remove("");
ContextsAfter.Remove("");
ContextsBefore.Remove("");
InvalidsAfter.Remove("");
InvalidsBefore.Remove("");
}