Question: What is the relationship between "feathers" and "onion" in image no.2345528?
SQL: SELECT T1.PRED_CLASS FROM PRED_CLASSES AS T1 INNER JOIN IMG_REL AS T2 ON T1.PRED_CLASS_ID = T2.PRED_CLASS_ID INNER JOIN IMG_OBJ AS T3 ON T2.OBJ1_SAMPLE_ID = T3.OBJ_SAMPLE_ID INNER JOIN OBJ_CLASSES AS T4 ON T3.OBJ_CLASS_ID = T4.OBJ_CLASS_ID WHERE (T4.OBJ_CLASS = 'feathers' OR T4.OBJ_CLASS = 'onion') AND T2.IMG_ID = 2345528 GROUP BY T1.PRED_CLASS