@prefix ns2: <http://purl.org/dc/terms/> .
@prefix orcid: <https://orcid.org/> .
@prefix this: <http://purl.org/np/RAIRpV_rKOXhvrxYPm-YCo7HeXZeg_8lSZaJrwpE1GRQ0> .
@prefix sub: <http://purl.org/np/RAIRpV_rKOXhvrxYPm-YCo7HeXZeg_8lSZaJrwpE1GRQ0#> .
@prefix bpmn: <http://dkm.fbk.eu/index.php/BPMN2_Ontology#> .
@prefix np: <http://www.nanopub.org/nschema#> .
@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:a a "float", pplan:Variable;
    rdfs:label "a" .
  
  sub:b a "float", pplan:Variable;
    rdfs:label "b" .
  
  sub:step a bpmn:ScriptTask, pplan:Step;
    ns2:description """@is_fairstep(label='Subtraction')
def sub(a: float, b: float) -> float:
    \"\"\"Subtracting numbers.\"\"\"
    return a - b
""";
    pplan:hasInputVar sub:a, sub:b;
    pplan:hasOutputVar sub:sub-output1;
    rdfs:label "Subtraction" .
  
  sub:sub-output1 a "float", pplan:Variable;
    rdfs:label "sub-output1" .
}

sub:provenance {
  sub:assertion prov:generatedAtTime "2021-01-25T15:28:36.787317"^^xsd:dateTime .
}

sub:pubInfo {
  sub:sig npx:hasAlgorithm "RSA";
    npx:hasPublicKey "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCwUtewGCpT5vIfXYE1bmf/Uqu1ojqnWdYxv+ySO80ul8Gu7m8KoyPAwuvaPj0lvPtHrg000qMmkxzKhYknEjq8v7EerxZNYp5B3/3+5ZpuWOYAs78UnQVjbHSmDdmryr4D4VvvNIiUmd0yxci47dTFUj4DvfHnGd6hVe5+goqdcwIDAQAB";
    npx:hasSignature "F9iB9VM0XkLoz1JtEkhfeoVTxuj4HbTaljjz04eqe2Z5qLMTa+h4ACOoJ5M6VkdlxhadANo+rZYDr9Af1kysm2Q9MPzslXLTxONVy0MP5I1teFjWxSgBA8kV13C0pcTB+L6ZzXCoONovTNRrNaWdVgaN1fNjEf1/lNHwB0Vevbc=";
    npx:hasSignatureTarget this: .
  
  this: npx:introduces sub:step;
    prov:generatedAtTime "2021-01-25T15:28:36.787317"^^xsd:dateTime;
    prov:wasAttributedTo orcid:0000-0002-1267-0234 .
}