text: According to Yen, "patient 4514" showed signs of the disease on May 17?
classes:  No, patient 4514 showed positive signs of recovering on July 15.  Besides, patient 4514 showed positive signs of recovering on July 15.  Yes, patient 4514 showed positive signs of recovering on July 15.  Meanwhile, patient 4514 showed positive signs of recovering on July 15.