[{"parent_uid":"content_markup-lesson1.php-0","uid":"rRxYTOFuqr1660746747","start":0,"end":48,"has_notes":true,"notedata":{"position":{"top":14.097224922790474,"left":119.58334037841797},"text":"date and time"},"text":"","mode":"marker","color":"#f0f05f","content":"On Friday, October 21, at approximately 8:30 a.m"}]