@prefix ns1: <http://purl.org/dc/terms/> .
@prefix orcid: <https://orcid.org/> .
@prefix this: <http://purl.org/np/RAtmjtY1D_I6BMafJ43jY35eFdHlyFZuSNrUe2HZmlRAU> .
@prefix sub: <http://purl.org/np/RAtmjtY1D_I6BMafJ43jY35eFdHlyFZuSNrUe2HZmlRAU#> .
@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: np:hasAssertion sub:assertion;
    np:hasProvenance sub:provenance;
    np:hasPublicationInfo sub:pubInfo;
    a np:Nanopublication .
}

sub:assertion {
  sub:a a "float", pplan:Variable;
    rdfs:label "a" .
  
  sub:b a "float", pplan:Variable;
    rdfs:label "b" .
  
  sub:step ns1: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;
    a bpmn:ScriptTask, pplan:Step;
    rdfs:label "Subtraction" .
  
  sub:sub-output1 a "float", pplan:Variable;
    rdfs:label "sub-output1" .
}

sub:provenance {
  sub:assertion prov:generatedAtTime "2021-01-24T20:44:51.617557"^^xsd:dateTime .
}

sub:pubInfo {
  sub:sig npx:hasAlgorithm "RSA";
    npx:hasPublicKey "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCoZmUKAHAF0CY2sKahOanR1V8wP62NOw3G0wcVLULWxqXB/gcW25bGPcA5RKoiuhT6dUbfcRXmwLknE29h6KWfKYLtNaqdrHbjSnNC65dNmNxCNp0i6ZLZRh51mxw9IPJHZrDqQ9bcLwm9d1G1fDKasA+h1vrF3Hv1YrQsF9aW1QIDAQAB";
    npx:hasSignature "W+YcRpjG9b+ZKza87cByfGQzHTpc7mVJ6ktmPLqbL0BUv8qG/jhD4p0gJll4OO/oLwamn/be8R7qv3YrmR3unaNCytf696Jn4i0ksTLjIIUa0q8jbSp7PY9OamRoRp+WKbcn9FPhVehoXQn3nfzRJxLyV6HcCxMW6eSNJv4UTqc=";
    npx:hasSignatureTarget this: .
  
  this: npx:introduces sub:step;
    prov:generatedAtTime "2021-01-24T20:44:51.617557"^^xsd:dateTime;
    prov:wasAttributedTo orcid:0000-0000-0000-0000 .
}