<https://guide.worksmobile.com/jp/calendar/calendar-guide/check-event/view-other-peoples-calendars/#primaryimage>
<http://schema.org/height>
"48"^^<http://www.w3.org/2001/XMLSchema#integer>
<https://guide.worksmobile.com/jp/calendar/calendar-guide/check-event/view-other-peoples-calendars/>