anchor.diff:  Programme,organisms,JERMVocab.investigates,u,,
   Programme,assets,JERMVocab.hasItem,u,,select{|item| !item.is_a?(Presentation)}
   Programme,people,JERMVocab.isAssociatedWith,u,,
  +Programme,projects,JERMVocab.hasPart,u,,
   Project,assays,JERMVocab.hasItem,u,,
   Project,assets,JERMVocab.hasItem,u,,select{|item| !item.is_a?(Presentation)}
   Project,investigations,JERMVocab.hasItem,u,,
  
positive.code: Project,studies,JERMVocab.hasItem,u,,
  Project,web_page,RDF::FOAF.homepage,u,,
  Project,people,JERMVocab.isAssociatedWith,u,,
  Publication,projects,JERMVocab.itemProducedBy,u,,
  Publication,assays,JERMVocab.isPartOf,u,,
  Sop,assays,JERMVocab.isPartOf,u,,
  
negative.code: Strain,provider_id,JERMVocab.External_supplier_ID,l,,
  Study,assays,JERMVocab.hasPart,u,,
  Study,investigation,JERMVocab.isPartOf,u,,
  Study,projects,JERMVocab.itemProducedBy,u,,
  