BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//hacksw/handcal//NONSGML v1.0//EN
BEGIN:VEVENT
URL:/calendar/?id=13761
DTSTART:20211022T160000Z
DTEND:20211022T170000Z
SUMMARY:Attention: a performance 
LOCATION:ground floor, Rutherford Building
END:VEVENT
END:VCALENDAR