preferred_name: The nipple is raised a little in this stage. The rest of the breast is still flat.
preferred_name_lc: the nipple is raised a little in this stage. the rest of the breast is still flat.
label: The nipple is raised a little in this stage. The rest of the breast is still flat.
label_lc: the nipple is raised a little in this stage. the rest of the breast is still flat.