- ASSIGNABLE_DIGITAL_RESOURCE =
"http://purl.imsglobal.org/caliper/v1/AssignableDigitalResource"
- EPUB_CHAPTER =
"http://www.idpf.org/epub/vocab/structure/#chapter"
- EPUB_PART =
"http://www.idpf.org/epub/vocab/structure/#part"
- EPUB_SUB_CHAPTER =
"http://www.idpf.org/epub/vocab/structure/#subchapter"
- EPUB_VOLUME =
"http://www.idpf.org/epub/vocab/structure/#volume"
- FRAME =
"http://purl.imsglobal.org/caliper/v1/Frame"
- MEDIA_LOCATION =
"http://purl.imsglobal.org/caliper/v1/MediaLocation"
- MEDIA_OBJECT =
"http://purl.imsglobal.org/caliper/v1/MediaObject"
- READING =
"http://purl.imsglobal.org/caliper/v1/Reading"
- WEB_PAGE =
"http://purl.imsglobal.org/caliper/v1/WebPage"