Question: What is the object whose attribute is blurry in image no.2377993? Give the explanation about the object.
SQL: SELECT T4.OBJ_CLASS_ID, T4.OBJ_CLASS FROM IMG_OBJ_att AS T1 INNER JOIN ATT_CLASSES AS T2 ON T1.ATT_CLASS_ID = T2.ATT_CLASS_ID INNER JOIN IMG_OBJ AS T3 ON T1.IMG_ID = T3.IMG_ID INNER JOIN OBJ_CLASSES AS T4 ON T3.OBJ_CLASS_ID = T4.OBJ_CLASS_ID WHERE T2.ATT_CLASS = 'blurry' AND T1.IMG_ID = 22377993