public void execute() 
    // -------------<SOL id="23580b3c-e2c5-4b16-894c-e3f4464f5a98:___throw__" />
    // -------------<LOS id="23580b3c-e2c5-4b16-894c-e3f4464f5a98:___throw__" />
    {
        // ---------<SOL id="23580b3c-e2c5-4b16-894c-e3f4464f5a98:___body___" />
    	ObjectOfClass owner = galleryOwner.val();
    	IAssociationEndInstance<PictureFromGallery> gallery = ((House) owner).gallery;
        picture.val().removeFromGallery(gallery);
        // ---------<LOS id="23580b3c-e2c5-4b16-894c-e3f4464f5a98:___body___" />
    }