mutation {
  CreateMediaObject(
title: "Rossinyol"
        contributor: "www.upf.edu"
        creator: "trompamusic.eu"
        source: "https://www.cpdl.org/wiki/index.php/Rossinyol"
        format: "text/html"
        description: "Traditional choir piece"
        encodingFormat: "text/html"
        contentUrl: "https://www.cpdl.org/wiki/index.php/Rossinyol"
        inLanguage: "ca"
        date: { year: 1972 }
        language: en
) {
identifier
}
}