@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix np: <http://www.nanopub.org/nschema#> .
@prefix npx: <http://purl.org/nanopub/x/> .
@prefix ns1: <https://precis.retostamm.com/vocab#> .
@prefix ns2: <http://purl.org/spar/cito/> .
@prefix orcid: <https://orcid.org/> .
@prefix prov: <http://www.w3.org/ns/prov#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix sub: <https://w3id.org/np/RAtg6YcXNbGP-3Xc5l_9sE-ILEglIZIPKy9gzyaUCZDy8/> .
@prefix this: <https://w3id.org/np/RAtg6YcXNbGP-3Xc5l_9sE-ILEglIZIPKy9gzyaUCZDy8> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

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

sub:assertion {
  sub:claim a ns1:AtomicClaim;
    rdfs:label "Nanoindentation in an atomic force microscope measures a Young's modulus of 1.0 TPa for free-standing monolayer graphene."@en;
    ns1:aidaUri <http://purl.org/aida/Nanoindentation%20in%20an%20atomic%20force%20microscope%20measures%20a%20Young%27s%20modulus%20of%201.0%20TPa%20for%20free-standing%20monolayer%20graphene.>;
    ns1:material "graphene";
    ns1:quantity "1.0 terapascals";
    ns1:quantityBound "exact" .
}

sub:provenance {
  sub:assertion prov:wasDerivedFrom <https://doi.org/10.1126/science.1157996>;
    ns1:groundedBy sub:grounding1, sub:grounding2 .
  
  sub:grounding1 a ns1:Grounding;
    ns2:includesQuotationFrom <https://doi.org/10.1126/science.1157996>;
    ns1:evidenceRole ns1:corroborates;
    ns1:fromSource <https://doi.org/10.1126/science.1157996>;
    ns1:searchSnip "we measured the elastic properties and intrinsic breaking";
    ns1:sourcePdfSha256 "a9e2f4cf32a7c5d91d78cb7ab57f6d97411c1856e5cde2e575d526d7654db95e";
    ns1:sourceQuote "We measured the elastic properties and intrinsic breaking strength of free-standing monolayer graphene membranes by nanoindentation in an atomic force microscope."@en .
  
  sub:grounding2 a ns1:Grounding;
    ns2:includesQuotationFrom <https://doi.org/10.1126/science.1157996>;
    ns1:evidenceRole ns1:corroborates;
    ns1:fromSource <https://doi.org/10.1126/science.1157996>;
    ns1:searchSnip "these quantities correspond to a young s modulus";
    ns1:sourcePdfSha256 "a9e2f4cf32a7c5d91d78cb7ab57f6d97411c1856e5cde2e575d526d7654db95e";
    ns1:sourceQuote "These quantities correspond to a Young's modulus of E = 1.0 terapascals"@en .
}

sub:pubinfo {
  <https://precis.retostamm.com/id/precis> a prov:SoftwareAgent;
    rdfs:label "precis (non-attesting bot identity)" .
  
  this: prov:generatedAtTime "2026-08-23T22:39:11.620161+00:00"^^xsd:dateTime;
    prov:wasAttributedTo orcid:0000-0002-1427-020X;
    ns1:composedBy sub:software;
    ns1:mintedFromHub <https://precis.retostamm.com/ref/fi211520> .
  
  sub:assertion dcterms:license <https://creativecommons.org/licenses/by/4.0/>;
    ns1:licenseNote "CC-BY covers this nanopublication's triples; verbatim sourceQuote text remains copyright its publisher (fair-use quotation)." .
  
  sub:sig npx:hasAlgorithm "RSA";
    npx:hasPublicKey "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";
    npx:hasSignature "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";
    npx:hasSignatureTarget this:;
    npx:signedBy orcid:0000-0002-1427-020X .
  
  sub:software rdfs:label "precis";
    ns1:deployedSha "unknown";
    ns1:version "8.31.0" .
}