private static void printAllDescriptions(ConceptChronicleBI con)
			throws IOException, ContradictionException {
		Collection<? extends DescriptionChronicleBI> allDesc = con
				.getDescriptions();
		int i = 0;

		for (DescriptionChronicleBI descAllVersoins : allDesc) {
			DescriptionVersionBI desc = descAllVersoins.getVersion(vc);

			// Description-based attributes
			if (desc != null) {
				System.out.println("Description #" + ++i);
				printDescription(desc);
			} else {
				System.out
						.println("No Description available at View cordinate");
			}
		}
	}