Task: Answer Verification
Input (English): Question: Are [ Parathyroid glands differentiated from lymph node by activated-carbon particles ]?
Answer: Lymph node of VI group can be stained black by activated carbon particles, and parathyroid gland cannot be stained black. Maybe, parathyroid gland can be preserved by removing the black stain lymph node and retaining the non-black stained tissue.
Output (English): yes