State the object class of sample no.10 of image no.2320341.
object class refers to OBJ_CLASS; sample no.10 refers to OBJ_SAMPLE_ID = 10; image no.2320341 refers to IMG_ID = 2320341
SELECT T1.OBJ_CLASS FROM OBJ_CLASSES AS T1 INNER JOIN IMG_OBJ AS T2 ON T1.OBJ_CLASS_ID = T2.OBJ_CLASS_ID WHERE T2.IMG_ID = 2320341 AND T2.OBJ_SAMPLE_ID = 10