Starting point for a discussion on class hierarchy for Moby objects

o Virtual objects exlude the large attributes such as sequences and thus essentially consist of only the triple and synonyms block.

o The objects followed by an asterisks are currently implemented in the experimental MOBYObjects.pm module.

Moby [triple] *
	VirtualSequence [length] *
		VirtualDNASequence *
		VirtualProteinSequence *
		VirtualRNASequence [type]
		Sequence [sequence] *
			DNASequence [] *
			RNASequence [type]
			ProteinSequence [] *
			
	Chromosome [Number, Species, VirtualDNASequence | DNASequence]
	Polymorphism	[type {snp, indel, deletion, insertion, reversion} start, end, DNASequence]
		SNP	[]
		Indel	[]
		Deletion []
		Insertion []

	Locus [GeneModel*, Species] 
				
	GeneModel [DNASequence, ProteinSequence, orientation, Chromosome, start, end, SequenceFeatureAnnotation+]
			
	VirtualKeyword [] *
		Keyword [term] *
			GO_Term [term, definition]
	Ontology
		GOOntology [DAG] 
	Annotation [evidence]
		SequencFeatureAnnotation [start, end, SequenceFeatureOntologyId]
		GOAnnotation [GO_Term, Locus+]
		
	SequenceAlignment
		MultipleAlignment
			ClustalW [SeqList, {parameters}]
		TwoSeqAlignment
			BLAST
				NCBI-BLAST [seq (query), Seq_List (matched), {match_parameters}
				WU-BLAST
	ExpressionAnalysis
		MicroarrayAnalysis
		SAGEAnalysis
	Pathway	[pathwayName, Reaction+, description]
	Reaction [name, Reactants+, Products+] 
	Compound [name]
	Enzyme [name, Locus]
	Genefamily [name, Locus+]
	#Interaction
	#	DNAProteinInteraction
	#	ProteinProteinInteraction
	#	Protein
	Species [speciesCommonName, fullName, shortName]
	Experiment [experimentName, experimentType, experimentDescription, experimentData, experimentResult]
	Publication [title, journal, Person+, year, Institution, abstract] 
	WebResource [name, url]
	Person [firstName, lastName, EmailAddress, Institution]
	Institution [name, address, phone, url]
	Synonym [text]