text: By noon on May 20, authorities had tracked down 79 F1s at the company involving many districts, towns and cities in the province?
classes:  No, anti-epidemic agencies taking less than a day have found F1s linked to the infection.  Also, anti-epidemic agencies taking less than a day have found F1s linked to the infection.  Yes, anti-epidemic agencies taking less than a day have found F1s linked to the infection.