anchor.diff:  Programme,assets,JERMVocab.hasItem,u,,select{|item| !item.is_a?(Presentation)}
   Programme,people,JERMVocab.isAssociatedWith,u,,
   Programme,projects,JERMVocab.hasPart,u,,
  +Programme,rdf_seek_id,JERMVocab.seekID,l,URI.parse(item),
   Project,assays,JERMVocab.hasItem,u,,
   Project,assets,JERMVocab.hasItem,u,,select{|item| !item.is_a?(Presentation)}
   Project,investigations,JERMVocab.hasItem,u,,
  
positive.code: Assay,assets,JERMVocab.hasPart,u,,select{|item| !item.is_a?(Presentation)}
  Assay,validation_assets,JERMVocab.isValidatedBy,u,,
  Assay,construction_assets,JERMVocab.isConstructedFrom,u,,
  Compound,chebi_ids,RDF::OWL.sameAs,u,'http://identifiers.org/obo.chebi/CHEBI:'+item,
  Compound,chebi_ids,RDF::OWL.sameAs,u,'urn:miriam:obo.chebi:'+item,
  DataFile,assays,JERMVocab.isPartOf,u,,
  DataFile,projects,JERMVocab.itemProducedBy,u,,
  Investigation,projects,JERMVocab.itemProducedBy,u,,
  Investigation,studies,JERMVocab.hasPart,u,,
  Model,assays,JERMVocab.isPartOf,u,,
  Model,organism,JERMVocab.investigates,u,,
  Model,projects,JERMVocab.itemProducedBy,u,,
  Organism,assays,JERMVocab.isInvestigatedBy,u,,
  Organism,ncbi_uri,JERMVocab.NCBI_ID,u,,
  Person,assets,JERMVocab.isCreatorOf,u,,select{|item| !item.is_a?(Presentation)}
  
negative.code: *,managers,RDF::SIOC.has_owner,u,,
  *,updated_at,RDF::DC.modified,l,item.to_datetime,
  *,latest_version,RDF::DC.hasVersion,u,,
  Assay,assay_type_uri,JERMVocab.hasType,u,,
  Assay,incoming,JERMVocab.hasInput,u,,
  Assay,outgoing,JERMVocab.hasOutput,u,,
  