preferred_name: Thick soft white papules and plaques of variable size (may be in any part of oral cavity)
preferred_name_lc: thick soft white papules and plaques of variable size (may be in any part of oral cavity)
label: Thick soft white papules and plaques of variable size (may be in any part of oral cavity)
label_lc: thick soft white papules and plaques of variable size (may be in any part of oral cavity)