State the width and height of the object with the class of 'van' in image 1.
The bounding box's W and H abbreviations stand for the object's width and height respectively; class of 'van' in image 1 refers to OBJ_CLASS = 'van' where IMG_ID = 1;
SELECT T1.H, T1.W FROM IMG_OBJ AS T1 INNER JOIN OBJ_CLASSES AS T2 ON T1.OBJ_CLASS_ID = T2.OBJ_CLASS_ID WHERE T1.IMG_ID = 1 AND T2.OBJ_CLASS = 'van'