code: public boolean hasNoTime(Statement o) {	 
          if (o instanceof HasTime) return false;
          if (o instanceof Activity) return false;
          return true;
          /* OLD Definition
           return (o instanceof WasDerivedFrom) 
          	 || (o instanceof ActedOnBehalfOf)
                   || (o instanceof WasInformedBy)
                   || (o instanceof WasAttributedTo)
                   || (o instanceof WasAssociatedWith)
                   || (o instanceof WasInfluencedBy)
                   || (o instanceof SpecializationOf)
                   || (o instanceof AlternateOf)
                   || (o instanceof MentionOf)
                   || (o instanceof HadMember);
           */
      }
docs: Indicates whether object has no time field.