PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • I think your solution is a first step in the right direction, however, I am missing three important things: (i) The math font should be the default LaTeX one and I do not know how to set this with \setmathfont. (ii) Only math digits shall be set to the main font defined with fontspec, without recalling the font name manually. (iii) Additionally, the equation seems misplaced (distance of elements),
http://www.w3.org/ns/prov#wasQuotedFrom
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