http://purl.org/np/RALRTKsIv6wo1SuHv59EEBPQIOSfBov2uAfMC-mNlFW2g#Head http://purl.org/np/RALRTKsIv6wo1SuHv59EEBPQIOSfBov2uAfMC-mNlFW2g http://www.nanopub.org/nschema#hasAssertion http://purl.org/np/RALRTKsIv6wo1SuHv59EEBPQIOSfBov2uAfMC-mNlFW2g#assertion http://purl.org/np/RALRTKsIv6wo1SuHv59EEBPQIOSfBov2uAfMC-mNlFW2g http://www.nanopub.org/nschema#hasProvenance http://purl.org/np/RALRTKsIv6wo1SuHv59EEBPQIOSfBov2uAfMC-mNlFW2g#provenance http://purl.org/np/RALRTKsIv6wo1SuHv59EEBPQIOSfBov2uAfMC-mNlFW2g http://www.nanopub.org/nschema#hasPublicationInfo http://purl.org/np/RALRTKsIv6wo1SuHv59EEBPQIOSfBov2uAfMC-mNlFW2g#pubinfo http://purl.org/np/RALRTKsIv6wo1SuHv59EEBPQIOSfBov2uAfMC-mNlFW2g http://www.w3.org/1999/02/22-rdf-syntax-ns#type http://www.nanopub.org/nschema#Nanopublication http://purl.org/np/RALRTKsIv6wo1SuHv59EEBPQIOSfBov2uAfMC-mNlFW2g#assertion http://purl.org/np/RALRTKsIv6wo1SuHv59EEBPQIOSfBov2uAfMC-mNlFW2g#paragraph http://purl.org/spar/c4o/hasContent The task is not formulated as a classification one, but we argue it is relevant for the completeness of the extracted facts: rather, it is carried out via matching and transformation rule pairs. Given for instance the input expression tra il 1920 e il 1925 (between 1920 and 1925), our normalizer first matches it through a regular expression rule, then applies a transformation rule complying to the XML Schema Datatypes 20 (typically dates and times) standard, and finally produces the following output: 21 http://purl.org/np/RALRTKsIv6wo1SuHv59EEBPQIOSfBov2uAfMC-mNlFW2g#paragraph http://www.w3.org/1999/02/22-rdf-syntax-ns#type http://purl.org/spar/doco/Paragraph http://purl.org/np/RALRTKsIv6wo1SuHv59EEBPQIOSfBov2uAfMC-mNlFW2g#provenance http://purl.org/np/RALRTKsIv6wo1SuHv59EEBPQIOSfBov2uAfMC-mNlFW2g#assertion http://www.w3.org/ns/prov#hadPrimarySource http://dx.doi.org/10.3233/SW-170269 http://purl.org/np/RALRTKsIv6wo1SuHv59EEBPQIOSfBov2uAfMC-mNlFW2g#assertion http://www.w3.org/ns/prov#wasAttributedTo https://orcid.org/0000-0002-5456-7964 http://purl.org/np/RALRTKsIv6wo1SuHv59EEBPQIOSfBov2uAfMC-mNlFW2g#pubinfo http://purl.org/np/RALRTKsIv6wo1SuHv59EEBPQIOSfBov2uAfMC-mNlFW2g http://purl.org/dc/terms/created 2019-11-10T18:05:11+01:00 http://purl.org/np/RALRTKsIv6wo1SuHv59EEBPQIOSfBov2uAfMC-mNlFW2g http://purl.org/pav/createdBy https://orcid.org/0000-0002-7114-6459