sed -r 's/(<.*?hasMultiplicity[^<>]*?>)([0-9](\.[0-9]+)?)(\w)(<.*?>)/\1\4\5\n <nmr:hasIntensity rdf:datatype="xsd:float">\2<\/nmr:hasIntensity>/' nmrshiftdata.r2.rdf.xml > nmrshiftdata.r3.rdf.xml