@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix orcid: <https://orcid.org/> .
@prefix this: <http://purl.org/np/RA778IqDJa61TCSJwJw1w2OD2agYS1S3CPySGeD7ts2-Y> .
@prefix sub: <http://purl.org/np/RA778IqDJa61TCSJwJw1w2OD2agYS1S3CPySGeD7ts2-Y#> .
@prefix schema: <https://schema.org/> .
@prefix bpmn: <http://dkm.fbk.eu/index.php/BPMN2_Ontology#> .
@prefix np: <http://www.nanopub.org/nschema#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix npx: <http://purl.org/nanopub/x/> .
@prefix pplan: <http://purl.org/net/p-plan#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix prov: <http://www.w3.org/ns/prov#> .

sub:Head {
  this: a np:Nanopublication;
    np:hasAssertion sub:assertion;
    np:hasProvenance sub:provenance;
    np:hasPublicationInfo sub:pubInfo .
}

sub:assertion {
  sub:LinguisticSystem a schema:ComputerLanguage;
    rdfs:label "python";
    rdfs:seeAlso <https://www.wikidata.org/wiki/Q28865>;
    owl:versionInfo "3.8.6.final.0" .
  
  sub:bg_img a pplan:Variable;
    rdfs:comment "None";
    rdfs:label "bg_img" .
  
  sub:fg_img a pplan:Variable;
    rdfs:comment "None";
    rdfs:label "fg_img" .
  
  sub:out1 a pplan:Variable;
    rdfs:comment "None";
    rdfs:label "out1" .
  
  sub:step a bpmn:ScriptTask, pplan:Step;
    dcterms:description """@is_fairstep(label='Overlay image with another (partly transparent) one')
def overlay(bg_img, fg_img):
    from PIL import Image
    img = bg_img.copy()
    fg_img = fg_img.convert(\"RGBA\")
    img.paste(fg_img, (0, 0), fg_img)
    return img
""";
    dcterms:language sub:LinguisticSystem;
    pplan:hasInputVar sub:bg_img, sub:fg_img;
    pplan:hasOutputVar sub:out1;
    rdfs:label "Overlay image with another (partly transparent) one" .
}

sub:provenance {
  sub:assertion prov:generatedAtTime "2021-04-30T15:31:21.267730"^^xsd:dateTime .
}

sub:pubInfo {
  sub:sig npx:hasAlgorithm "RSA";
    npx:hasPublicKey "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCwUtewGCpT5vIfXYE1bmf/Uqu1ojqnWdYxv+ySO80ul8Gu7m8KoyPAwuvaPj0lvPtHrg000qMmkxzKhYknEjq8v7EerxZNYp5B3/3+5ZpuWOYAs78UnQVjbHSmDdmryr4D4VvvNIiUmd0yxci47dTFUj4DvfHnGd6hVe5+goqdcwIDAQAB";
    npx:hasSignature "Qe4UgWHyC7eNFzwcxG34QbPpZU0aWQuw2JImml0/KLy8/xSo+M3QwMF25CC7u1m9h8koaivJkUgEroLxRDUwln2Qbv+q85ZPIImBCpSSfAlNCZ69PoaGHeI1C6tfkBvbj4lbr/I6JGHD7t02/2mjAHklky83RbEgYWOkB4GeZXc=";
    npx:hasSignatureTarget this: .
  
  this: npx:introduces sub:step;
    prov:generatedAtTime "2021-04-30T15:31:21.267730"^^xsd:dateTime;
    prov:wasAttributedTo orcid:0000-0002-1267-0234 .
}