<https://sailplus.academy/gradings/ovouza-%ce%b2%ce%b1%cf%83%ce%b9%ce%ba%ce%ad%cf%82-%ce%bc%ce%b1%ce%bd%ce%bf%cf%8d%ce%b2%cf%81%ce%b5%cf%82-manual-complete/>
<http://schema.org/dateModified>
"2021-09-28T13:51:56+00:00"^^<http://schema.org/Date>
<https://sailplus.academy/gradings/ovouza-%CE%B2%CE%B1%CF%83%CE%B9%CE%BA%CE%AD%CF%82-%CE%BC%CE%B1%CE%BD%CE%BF%CF%8D%CE%B2%CF%81%CE%B5%CF%82-manual-complete/>