@prefix dct: <http://purl.org/dc/terms/> .
@prefix orcid: <https://orcid.org/> .
@prefix this: <http://purl.org/np/RAyMqmxCD9N7l-ZuNmEPPxTfEMWTfPZv-w9kELua2NZA8> .
@prefix sub: <http://purl.org/np/RAyMqmxCD9N7l-ZuNmEPPxTfEMWTfPZv-w9kELua2NZA8#> .
@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: np:hasAssertion sub:assertion;
    np:hasProvenance sub:provenance;
    np:hasPublicationInfo sub:pubInfo;
    a np:Nanopublication .
}

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:image a pplan:Variable;
    rdfs:comment "None";
    rdfs:label "image" .
  
  sub:out1 a pplan:Variable;
    rdfs:comment "None";
    rdfs:label "out1" .
  
  sub:step dct:description """@is_fairstep(label='Convert image to grayscale')
def rgb2gray_image(image):    
    from PIL import Image
    new_image = image.convert('L')
    return new_image
""";
    dct:language sub:LinguisticSystem;
    pplan:hasInputVar sub:image;
    pplan:hasOutputVar sub:out1;
    a bpmn:ScriptTask, pplan:Step;
    rdfs:label "Convert image to grayscale" .
}

sub:provenance {
  sub:assertion prov:generatedAtTime "2021-06-14T16:07:56.843829"^^xsd:dateTime .
}

sub:pubInfo {
  sub:assertion prov:wasDerivedFrom <http://purl.org/np/RA_53u4yrUqoWcZMyzsOCba-E5QMBdLZ7Dn_rPWUcfgU8> .
  
  sub:sig npx:hasAlgorithm "RSA";
    npx:hasPublicKey "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC9V9kbrIuR0DFnTApZo6KB6GiORCWC4IikDso95k3Xd421XT8Ye41FgtmN8XWv4iPffqNR5dJuZUzopLcvlAYa3mpCVh3r4V4P6ZKNrXounRKrnvqO8i/OSptSYVWfpRcmVMPwnvrY0sFiGKAIiPSJopaAXKcc2gFUMtRtVW3RCwIDAQAB";
    npx:hasSignature "J0QWvt4cDXvreZYNqnoefa3tnx0EtGgys+fTUicVJq9qhvnjIU9xXlF2qCPEhZlZRdJvFvhr8LED/zdLDm9K9slDXG8Q0E30+epcICZeFuCbouZPjYBSFqmOHnLsV0J/AYp9t12jxr8pnm8UgtgEzXSjx20yh2LYnXG/BRlNQlA=";
    npx:hasSignatureTarget this: .
  
  this: npx:introduces sub:step;
    prov:generatedAtTime "2021-06-14T16:07:56.843829"^^xsd:dateTime;
    prov:wasAttributedTo orcid:0000-0000-0000-0000 .
}