@prefix dct: <http://purl.org/dc/terms/> .
@prefix orcid: <https://orcid.org/> .
@prefix this: <http://purl.org/np/RAHtH351_5jSHga26WqwFxFoBbpkCkk1KDcLllwmwamT4> .
@prefix sub: <http://purl.org/np/RAHtH351_5jSHga26WqwFxFoBbpkCkk1KDcLllwmwamT4#> .
@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 "3.7.9.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;
    dct: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
""";
    dct: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 "2021-06-14T16:09:43.522812"^^xsd:dateTime .
}

sub:pubInfo {
  sub:assertion prov:wasDerivedFrom <http://purl.org/np/RA778IqDJa61TCSJwJw1w2OD2agYS1S3CPySGeD7ts2-Y> .
  
  sub:sig npx:hasAlgorithm "RSA";
    npx:hasPublicKey "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC9V9kbrIuR0DFnTApZo6KB6GiORCWC4IikDso95k3Xd421XT8Ye41FgtmN8XWv4iPffqNR5dJuZUzopLcvlAYa3mpCVh3r4V4P6ZKNrXounRKrnvqO8i/OSptSYVWfpRcmVMPwnvrY0sFiGKAIiPSJopaAXKcc2gFUMtRtVW3RCwIDAQAB";
    npx:hasSignature "HJ8VqoEv7AOn89lhP5pAjwjv3c2CZf50bealUqwHilLFguzIaRR8TDIDieBU8ES+06qfXDKbdGgKbKCQ+jbFir+zC/kNNz02Tcu8cI9Txb3T2dH7HZDdsL6vUFF3XP2f1R3HumxPOAXA2xTGDCYKbFGCi1Dw5SgJFFMb6lK8cLQ=";
    npx:hasSignatureTarget this: .
  
  this: npx:introduces sub:step;
    prov:generatedAtTime "2021-06-14T16:09:43.522812"^^xsd:dateTime;
    prov:wasAttributedTo orcid:0000-0000-0000-0000 .
}