?  slide 16

New: Contributor Degree of Contribution

<contrib><string-name>Bonnie Blair</string-name>
<role degree-contribution="lead"
  vocab="CRediT" 
  vocab-term="Data curation" 
  vocab-term-identifier=
   "http://dictionary.casrai.org/Contributor_Roles/Data_curation" 
   >Data Curation</role>
</contrib>
 ?