private ORASSNode processRelationship(ErdNode relNode, ORASSNode parent) throws MainException{
		String relName = relNode.getTableName();
		ORASSNode processedNode;
		if(nRels.containsKey(relName)){
			// Relationship is an n-ary relationship
			processedNode = processNaryRel(relName, parent, nRels.get(relName));
		}else{
			// Relationship is binary
			processedNode = processBinaryRel(relName, parent);
		}
		return processedNode;
	}